@font-face{font-family:Roboto;font-style:normal;font-weight:400;src:local("Roboto Regular"),local("Roboto-Regular"),url(../font/roboto-latin-400.woff2) format("woff2"),url(../font/roboto-latin-400.woff) format("woff")}@font-face{font-family:Roboto;font-style:italic;font-weight:400;src:local("Roboto Italic"),local("Roboto-Italic"),url(../font/roboto-latin-400italic.woff2) format("woff2"),url(../font/roboto-latin-400italic.woff) format("woff")}@font-face{font-family:Roboto;font-style:normal;font-weight:500;src:local("Roboto Medium"),local("Roboto-Medium"),url(../font/roboto-latin-500.woff2) format("woff2"),url(../font/roboto-latin-500.woff) format("woff")}@font-face{font-family:Roboto;font-style:italic;font-weight:500;src:local("Roboto Medium Italic"),local("Roboto-MediumItalic"),url(../font/roboto-latin-500italic.woff2) format("woff2"),url(../font/roboto-latin-500italic.woff) format("woff")}@font-face{font-family:Roboto Mono;font-style:normal;font-weight:400;src:local("Roboto Mono"),local("RobotoMono-Regular"),url(../font/roboto-mono-latin-400.woff2) format("woff2"),url(../font/roboto-mono-latin-400.woff) format("woff")}@font-face{font-family:Roboto Mono;font-style:normal;font-weight:500;src:local("Roboto Mono Medium"),local("RobotoMono-Medium"),url(../font/roboto-mono-latin-500.woff2) format("woff2"),url(../font/roboto-mono-latin-500.woff) format("woff")}[data-theme=canyon]{--color-white:#fff;--color-gray-20:#bbb;--color-gray-30:#8e8e8e;--color-gray-70:#5d5d5d;--color-jet-70:#222;--color-beige:#ccccb3;--color-copper-20:#dbad82;--color-copper-50:#b87333;--color-grass:#78b160;--color-khaki:#bcb88a;--color-purple:#a0439c;--color-sage:#568430;--color-sky:#73c2fb;--color-straw:#d3cd99;--color-tomato:#c42;--theme-admonition-background:var(--color-straw);--theme-admonition-on-color:var(--color-white);--theme-back-icon:url(../img/back.svg);--theme-background:var(--color-beige);--theme-body-font-color:var(--color-jet-70);--theme-caption-font-color:var(--color-jet-70);--theme-caret-icon:url(../img/caret.svg);--theme-caution-color:var(--color-tomato);--theme-chevron-icon:url(../img/chevron.svg);--theme-code-font-color:var(--color-jet-70);--theme-doc-font-color:var(--color-jet-70);--theme-example-background:var(--color-straw);--theme-footer-font-color:var(--color-white);--theme-footer-link-font-color:var(--color-jet-70);--theme-footer-background:var(--color-sage);--theme-heading-font-color:var(--color-gray-70);--theme-highlight-comment-font-color:var(--color-gray-30);--theme-highlight-keyword-font-color:var(--color-tomato);--theme-highlight-literal-font-color:var(--color-purple);--theme-highlight-new_method-font-color:var(--color-copper-50);--theme-home-icon:url(../img/home.svg);--theme-home-o-icon:url(../img/home-o.svg);--theme-important-color:var(--color-purple);--theme-link-font-color:var(--color-sage);--theme-link_hover-font-color:var(--color-sage);--theme-muted-font-color:var(--color-gray-30);--theme-nav-background:var(--color-copper-20);--theme-nav-explore-background:var(--color-grass);--theme-nav-secondary-background:var(--color-straw);--theme-note-color:var(--color-sky);--theme-page-version-menu-background:var(--color-straw);--theme-page-version-missing-font-color:var(--color-gray-30);--theme-panel-background:var(--color-gray-20);--theme-pre-border-color:var(--color-gray-30);--theme-quote-attribution-font-color:var(--color-gray-70);--theme-quote-background:var(--color-straw);--theme-quote-border-color:var(--color-copper-50);--theme-quote-font-color:var(--color-jet-70);--theme-scrollbar-thumb-color:var(--color-copper-50);--theme-section-divider-color:var(--color-copper-50);--theme-sidebar-background:var(--color-khaki);--theme-tip-color:var(--color-sage);--theme-toc-font-color:var(--color-jet-70);--theme-toolbar-background:var(--color-sky);--theme-toolbar-font-color:var(--color-jet-70);--theme-warning-color:var(--color-copper-50)}[data-theme=dark]{--color-white:#fff;--color-gray-10:#d3d3d3;--color-gray-30:#8e8e8e;--color-gray-70:#5d5d5d;--color-jet-20:#4a4a4a;--color-jet-30:#424242;--color-jet-70:#222;--color-amber:#d17104;--color-denim:#1565c0;--color-green-20:#df8;--color-green-40:#218f26;--color-purple:#a0439c;--color-red:#f22;--color-teal:teal;--theme-admonition-background:var(--color-jet-20);--theme-admonition-on-color:var(--color-white);--theme-back-icon:url(../img/back_light.svg);--theme-background:var(--color-jet-30);--theme-body-font-color:var(--color-white);--theme-caption-font-color:var(--color-gray-10);--theme-caret-icon:url(../img/caret_light.svg);--theme-caution-color:var(--color-red);--theme-chevron-icon:url(../img/chevron_light.svg);--theme-code-font-color:var(--color-green-20);--theme-doc-font-color:var(--color-white);--theme-example-background:var(--color-jet-20);--theme-footer-font-color:var(--color-white);--theme-footer-link-font-color:var(--color-jet-90);--theme-footer-background:var(--color-jet-20);--theme-heading-font-color:var(--color-white);--theme-highlight-comment-font-color:var(--color-gray-30);--theme-highlight-keyword-font-color:var(--color-amber);--theme-highlight-literal-font-color:var(--color-teal);--theme-highlight-new_method-font-color:var(--color-red);--theme-home-icon:url(../img/home_light.svg);--theme-home-o-icon:url(../img/home-o_light.svg);--theme-important-color:var(--color-purple);--theme-link-font-color:var(--color-amber);--theme-link_hover-font-color:var(--color-amber);--theme-muted-font-color:var(--color-gray-30);--theme-nav-background:var(--color-jet-20);--theme-nav-explore-background:var(--color-gray-70);--theme-nav-secondary-background:var(--color-jet-20);--theme-note-color:var(--color-denim);--theme-page-version-menu-background:var(--color-jet-20);--theme-page-version-missing-font-color:var(--color-gray-30);--theme-panel-background:var(--color-jet-30);--theme-pre-border-color:var(--color-gray-30);--theme-quote-attribution-font-color:var(--color-gray-10);--theme-quote-background:var(--color-jet-30);--theme-quote-border-color:var(--color-gray-30);--theme-quote-font-color:var(--color-white);--theme-scrollbar-thumb-color:var(--color-amber);--theme-sidebar-background:var(--color-jet-20);--theme-section-divider-color:var(--color-gray-30);--theme-tip-color:var(--color-green-40);--theme-toc-font-color:var(--color-white);--theme-toolbar-background:var(--color-gray-70);--theme-toolbar-font-color:var(--color-white);--theme-warning-color:var(--color-amber)}[data-theme=jungle]{--color-white:#fff;--color-gray-10:#d3d3d3;--color-gray-30:#8e8e8e;--color-jet-50:#303030;--color-jet-70:#222;--color-amber:#d17104;--color-brown-20:#716825;--color-brown-50:#431;--color-brown-70:#35270a;--color-denim:#1565c0;--color-green-20:#df8;--color-green-60:#050;--color-green-80:#241;--color-purple:#a0439c;--color-red:#f22;--color-teal:teal;--theme-admonition-background:var(--color-brown-70);--theme-admonition-on-color:var(--color-white);--theme-back-icon:url(../img/back_light.svg);--theme-background:var(--color-jet-70);--theme-body-font-color:var(--color-white);--theme-caption-font-color:var(--color-gray-10);--theme-caret-icon:url(../img/caret_light.svg);--theme-caution-color:var(--color-red);--theme-chevron-icon:url(../img/chevron_light.svg);--theme-code-font-color:var(--color-white);--theme-doc-font-color:var(--color-white);--theme-example-background:var(--color-brown-50);--theme-footer-font-color:var(--color-white);--theme-footer-link-font-color:var(--color-jet-90);--theme-footer-background:var(--color-brown-70);--theme-heading-font-color:var(--color-green-20);--theme-highlight-comment-font-color:var(--color-gray-30);--theme-highlight-keyword-font-color:var(--color-amber);--theme-highlight-literal-font-color:var(--color-teal);--theme-highlight-new_method-font-color:var(--color-red);--theme-home-icon:url(../img/home_light.svg);--theme-home-o-icon:url(../img/home-o_light.svg);--theme-important-color:var(--color-purple);--theme-link-font-color:var(--color-red);--theme-link_hover-font-color:var(--color-red);--theme-muted-font-color:var(--color-gray-30);--theme-nav-background:var(--color-green-60);--theme-nav-explore-background:var(--color-green-80);--theme-nav-secondary-background:var(--color-green-60);--theme-note-color:var(--color-denim);--theme-page-version-menu-background:var(--color-brown-70);--theme-page-version-missing-font-color:var(--color-gray-30);--theme-panel-background:var(--color-jet-50);--theme-pre-border-color:var(--color-brown-50);--theme-quote-attribution-font-color:var(--color-gray-10);--theme-quote-background:var(--color-jet-70);--theme-quote-border-color:var(--color-brown-20);--theme-quote-font-color:var(--color-white);--theme-scrollbar-thumb-color:var(--color-red);--theme-section-divider-color:var(--color-green-20);--theme-sidebar-background:var(--color-brown-50);--theme-tip-color:var(--color-green-60);--theme-toc-font-color:var(--color-white);--theme-toolbar-background:var(--color-green-80);--theme-toolbar-font-color:var(--color-white);--theme-warning-color:var(--color-amber)}[data-theme=light]{--color-white:#fff;--color-gray-10:#d3d3d3;--color-gray-20:#bbb;--color-gray-30:#8e8e8e;--color-gray-70:#5d5d5d;--color-jet-70:#222;--color-amber:#d17104;--color-denim:#1565c0;--color-green-40:#218f26;--color-green-60:#050;--color-purple:#a0439c;--color-red:#f22;--color-teal:teal;--theme-admonition-background:var(--color-gray-10);--theme-admonition-on-color:var(--color-white);--theme-back-icon:url(../img/back.svg);--theme-background:var(--color-white);--theme-body-font-color:var(--color-jet-70);--theme-caption-font-color:var(--color-jet-70);--theme-caret-icon:url(../img/caret.svg);--theme-caution-color:var(--color-red);--theme-chevron-icon:url(../img/chevron.svg);--theme-code-font-color:var(--color-green-60);--theme-doc-font-color:var(--color-jet-70);--theme-example-background:var(--color-gray-10);--theme-footer-font-color:var(--color-jet-70);--theme-footer-link-font-color:var(--color-jet-70);--theme-footer-background:var(--color-gray-10);--theme-heading-font-color:var(--color-gray-70);--theme-highlight-comment-font-color:var(--color-gray-30);--theme-highlight-keyword-font-color:var(--color-amber);--theme-highlight-literal-font-color:var(--color-teal);--theme-highlight-new_method-font-color:var(--color-red);--theme-home-icon:url(../img/home.svg);--theme-home-o-icon:url(../img/home-o.svg);--theme-important-color:var(--color-purple);--theme-link-font-color:var(--color-denim);--theme-link_hover-font-color:var(--color-denim);--theme-muted-font-color:var(--color-gray-30);--theme-nav-background:var(--color-gray-10);--theme-nav-explore-background:var(--color-gray-20);--theme-nav-secondary-background:var(--color-gray-10);--theme-note-color:var(--color-denim);--theme-page-version-menu-background:var(--color-gray-10);--theme-page-version-missing-font-color:var(--color-gray-30);--theme-panel-background:var(--color-white);--theme-pre-border-color:var(--color-gray-30);--theme-quote-attribution-font-color:var(--color-gray-70);--theme-quote-background:var(--color-white);--theme-quote-border-color:var(--color-gray-30);--theme-quote-font-color:var(--color-jet-70);--theme-scrollbar-thumb-color:var(--color-denim);--theme-section-divider-color:var(--color-gray-30);--theme-sidebar-background:var(--color-gray-10);--theme-tip-color:var(--color-green-40);--theme-toc-font-color:var(--color-jet-70);--theme-toolbar-background:var(--color-gray-20);--theme-toolbar-font-color:var(--color-jet-70);--theme-warning-color:var(--color-amber)}[data-theme=pastel]{--color-white:#fff;--color-gray-30:#8e8e8e;--color-gray-70:#5d5d5d;--color-jet-70:#222;--color-denim:#1565c0;--color-gold:#f0d125;--color-green-40:#218f26;--color-ice:#beeeff;--color-lavender:#edd9ff;--color-lime:#cfc;--color-peach:#fdc;--color-purple:#a0439c;--color-red:#f22;--color-rose:#ffc9f0;--color-sky:#73c2fb;--color-teal:teal;--theme-admonition-background:var(--color-lime);--theme-admonition-on-color:var(--color-white);--theme-back-icon:url(../img/back.svg);--theme-background:var(--color-lavender);--theme-body-font-color:var(--color-jet-70);--theme-caption-font-color:var(--color-jet-70);--theme-caret-icon:url(../img/caret.svg);--theme-caution-color:var(--color-red);--theme-chevron-icon:url(../img/chevron.svg);--theme-code-font-color:var(--color-jet-70);--theme-doc-font-color:var(--color-jet-70);--theme-example-background:var(--color-lime);--theme-footer-font-color:var(--color-jet-70);--theme-footer-link-font-color:var(--color-jet-70);--theme-footer-background:var(--color-lime);--theme-heading-font-color:var(--color-gray-70);--theme-highlight-comment-font-color:var(--color-gray-30);--theme-highlight-keyword-font-color:var(--color-gold);--theme-highlight-literal-font-color:var(--color-teal);--theme-highlight-new_method-font-color:var(--color-red);--theme-home-icon:url(../img/home.svg);--theme-home-o-icon:url(../img/home-o.svg);--theme-important-color:var(--color-purple);--theme-link-font-color:var(--color-denim);--theme-link_hover-font-color:var(--color-denim);--theme-muted-font-color:var(--color-gray-30);--theme-nav-background:var(--color-peach);--theme-nav-explore-background:var(--color-rose);--theme-nav-secondary-background:var(--color-peach);--theme-note-color:var(--color-sky);--theme-page-version-menu-background:var(--color-peach);--theme-page-version-missing-font-color:var(--color-gray-30);--theme-panel-background:var(--color-white);--theme-pre-border-color:var(--color-gray-30);--theme-quote-attribution-font-color:var(--color-gray-70);--theme-quote-background:var(--color-peach);--theme-quote-border-color:var(--color-rose);--theme-quote-font-color:var(--color-jet-70);--theme-scrollbar-thumb-color:var(--color-denim);--theme-section-divider-color:var(--color-gray-30);--theme-sidebar-background:var(--color-ice);--theme-tip-color:var(--color-green-40);--theme-toc-font-color:var(--color-jet-70);--theme-toolbar-background:var(--color-rose);--theme-toolbar-font-color:var(--color-jet-70);--theme-warning-color:var(--color-gold)}[data-theme=phosphor]{--color-white:#fff;--color-gray-30:#8e8e8e;--color-jet-70:#222;--color-10:#0f0;--color-30:#0a0;--color-50:#060;--color-70:#030;--color-80:#020;--color-black:#000;--theme-admonition-background:var(--color-80);--theme-admonition-on-color:var(--color-black);--theme-back-icon:url(../img/back_green.svg);--theme-background:var(--color-black);--theme-body-font-color:var(--color-10);--theme-caption-font-color:var(--color-10);--theme-caret-icon:url(../img/caret_green.svg);--theme-caution-color:var(--color-30);--theme-chevron-icon:url(../img/chevron_green.svg);--theme-code-font-color:var(--color-10);--theme-doc-font-color:var(--color-10);--theme-example-background:var(--color-80);--theme-footer-font-color:var(--color-10);--theme-footer-link-font-color:var(--color-80);--theme-footer-background:var(--color-80);--theme-heading-font-color:var(--color-10);--theme-highlight-comment-font-color:var(--color-50);--theme-highlight-keyword-font-color:var(--color-10);--theme-highlight-literal-font-color:var(--color-10);--theme-highlight-new_method-font-color:var(--color-10);--theme-home-icon:url(../img/home_light.svg);--theme-home-o-icon:url(../img/home-o_light.svg);--theme-important-color:var(--color-30);--theme-link-font-color:var(--color-30);--theme-link_hover-font-color:var(--color-30);--theme-muted-font-color:var(--color-50);--theme-nav-background:var(--color-80);--theme-nav-explore-background:var(--color-70);--theme-nav-secondary-background:var(--color-80);--theme-note-color:var(--color-30);--theme-page-version-menu-background:var(--color-80);--theme-page-version-missing-font-color:var(--color-50);--theme-panel-background:var(--color-80);--theme-pre-border-color:var(--color-70);--theme-quote-attribution-font-color:var(--color-10);--theme-quote-background:var(--color-80);--theme-quote-border-color:var(--color-70);--theme-quote-font-color:var(--color-10);--theme-scrollbar-thumb-color:var(--color-10);--theme-sidebar-background:var(--color-80);--theme-section-divider-color:var(--color-70);--theme-tip-color:var(--color-30);--theme-toc-font-color:var(--color-10);--theme-toolbar-background:var(--color-70);--theme-toolbar-font-color:var(--color-10);--theme-warning-color:var(--color-30)}body,html{height:100%}*,::after,::before{-webkit-box-sizing:inherit;box-sizing:inherit}html{-webkit-box-sizing:border-box;box-sizing:border-box;font-size:1.05556rem;-webkit-text-size-adjust:100%}@media screen and (min-width:1024px){html{font-size:1.11111rem}}body{background:var(--theme-background);color:var(--theme-body-font-color);font-family:Roboto,sans-serif;line-height:1.15;margin:0}a{text-decoration:none}a:hover{text-decoration:underline}a:active{background-color:none}code,kbd,pre{font-family:Roboto Mono,monospace}b,dt,strong,th{font-weight:600}em em{font-style:normal}strong strong{font-weight:400}button{cursor:pointer;font-family:inherit;font-size:1em;line-height:1.15;margin:0}button::-moz-focus-inner{border:none;padding:0}.body{word-wrap:break-word}@media screen and (min-width:1024px){.body{display:-webkit-box;display:-ms-flexbox;display:flex}}.nav-container{position:fixed;top:2.11111rem;left:0;width:100%;font-size:.88889rem;z-index:1;visibility:hidden}@media screen and (min-width:769px){.nav-container{width:13.88889rem}}@media screen and (min-width:1024px){.nav-container{-webkit-box-flex:0;-ms-flex:none;flex:none;position:static;top:0;visibility:visible}}.nav-container.is-active{visibility:visible}.nav{background:var(--theme-nav-background);height:calc(100vh - 48px);position:relative;top:0}@media screen and (min-width:769px){.nav{-webkit-box-shadow:10px 0 20px -10px var(--theme-body-font-color);box-shadow:10px 0 20px -10px var(--theme-body-font-color)}}@media screen and (min-width:1024px){.nav{top:2.11111rem;-webkit-box-shadow:none;box-shadow:none;position:sticky;height:calc(100vh - 2.11111rem)}}.nav .panels{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:inherit}html.is-clipped--nav{overflow-y:hidden}.nav-panel-menu{overflow-y:scroll;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:calc(100vh - 5.66667rem)}@media screen and (min-width:1024px){.nav-panel-menu{height:calc(100vh - 3.88889rem)}}.nav-panel-menu:not(.is-active) .nav-menu{opacity:.75}.nav-panel-menu:not(.is-active)::after{background:var(--theme-background);content:"";display:block;position:absolute;top:0;right:0;bottom:0;left:0}.nav-panel-explore .components,.nav-panel-menu{scrollbar-width:thin;scrollbar-color:var(--theme-scrollbar-thumb-color) transparent}.nav-panel-explore .components::-webkit-scrollbar,.nav-panel-menu::-webkit-scrollbar{width:.25rem}.nav-panel-explore .components::-webkit-scrollbar-thumb,.nav-panel-menu::-webkit-scrollbar-thumb{background-color:var(--theme-scrollbar-thumb-color)}.nav-menu{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;min-height:0;width:100%;padding:.5rem .75rem;line-height:1;position:relative}.nav-menu h3.title{color:var(--theme-heading-font-color);font-size:1.22222rem;font-weight:600;margin:0;padding:.5rem}.nav-menu a{color:inherit}.nav-list{margin:0 0 0 .75rem;padding:0}.nav-menu>.nav-list{margin-bottom:5rem}.nav-item{list-style:none;margin-top:.5em}.nav-item-toggle~.nav-list{padding-bottom:.125rem}.nav-item[data-depth="0"]>.nav-list:first-child{display:block;margin:0}.nav-item:not(.is-active)>.nav-list{display:none}.nav-item-toggle{background:transparent var(--theme-caret-icon) no-repeat 50%/85%;border:none;outline:none;line-height:inherit;position:absolute;height:1em;width:1em;margin-top:-.05em;margin-left:-1em}.nav-item.is-active>.nav-item-toggle{-webkit-transform:rotate(90deg);transform:rotate(90deg)}.is-current-page>.nav-link,.is-current-page>.nav-text{font-weight:600}.nav-panel-explore{background:var(--theme-nav-explore-background);border-radius:.8rem .8rem 0 0;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;position:absolute;right:0;bottom:0;left:0;max-height:calc(50% + 1.77778rem)}.nav-panel-explore,.nav-panel-explore .context{display:-webkit-box;display:-ms-flexbox;display:flex}.nav-panel-explore .context{-ms-flex-negative:0;flex-shrink:0;padding:0 .25rem 0 .5rem;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;cursor:pointer;line-height:1;height:1.77778rem}.nav-panel-explore .context .version{background-image:var(--theme-chevron-icon);background-repeat:no-repeat;background-position:right .5rem top 50%;background-size:auto .75em;padding:0 1.5rem 0 0}.nav-panel-explore .components{line-height:1.3;-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;background:var(--theme-nav-secondary-background);padding:.5rem .75rem 0;margin:0;overflow-y:scroll;max-height:100%;display:block}.nav-panel-explore:not(.is-active) .components{display:none}.nav-panel-explore .component{display:block}.nav-panel-explore .component+.component{margin-top:.5rem}.nav-panel-explore .component:last-child{margin-bottom:.75rem}.nav-panel-explore .component .title{font-weight:600}.nav-panel-explore .versions{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;list-style:none;padding-left:0;margin-top:-.25rem;line-height:1}.nav-panel-explore .component .version{display:block;margin:.375rem .375rem 0 0}.nav-panel-explore .component .version a{border:1px solid var(--theme-body-font-color);border-radius:.25rem;color:inherit;opacity:.75;white-space:nowrap;padding:.125em .25em;display:inherit}.nav-panel-explore .component .is-current a{border-color:currentColor;opacity:.9;font-weight:600}.theme-switch-wrapper{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.theme-switch{display:inline-block;height:28px;position:relative;width:44px}.navlabel{margin-left:10px;font-family:Roboto,sans-serif;font-size:16px}.theme-switch input{display:none}.slider{background-color:var(--color-gray-30);bottom:0;left:0;right:0;top:0;cursor:pointer}.slider,.slider::before{border-radius:25px;position:absolute;-webkit-transition:.4s;transition:.4s}.slider::before{background-color:var(--color-white);bottom:4px;content:"";height:20px;left:4px;width:20px}input:checked+.slider{background-color:var(--theme-link-font-color)}input:checked+.slider::before{-webkit-transform:translateX(16px);transform:translateX(16px)}@media screen and (max-width:1023px){aside.toc.sidebar{display:none}}@media screen and (min-width:1024px){main{-webkit-box-flex:1;-ms-flex:auto;flex:auto;min-width:0}main>.content{display:-webkit-box;display:-ms-flexbox;display:flex}aside.toc.embedded{display:none}aside.toc.sidebar{-webkit-box-flex:0;-ms-flex:0 0 11rem;flex:0 0 11rem}}@media screen and (min-width:1500px){aside.toc.sidebar{-ms-flex-preferred-size:13.88889rem;flex-basis:13.88889rem}}.toolbar{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background-color:var(--theme-toolbar-background);border-radius:.8rem;color:var(--theme-toolbar-font-color);display:-webkit-box;display:-ms-flexbox;display:flex;font-size:.88889rem;height:1.77778rem;-webkit-box-pack:start;-ms-flex-pack:start;justify-content:flex-start;position:sticky;top:2.11111rem;z-index:2}.toolbar a{color:inherit}.nav-toggle-label{background-color:var(--theme-toolbar-background);border:none;color:var(--theme-toolbar-font-color)}.nav-toggle{background:var(--theme-chevron-icon) no-repeat 50%;background-size:28%;border:none;height:2.5rem;margin-left:-1.2rem;margin-right:1rem;-webkit-transform:rotate(270deg);transform:rotate(270deg);width:2.5rem}@media screen and (min-width:1024px){.nav-toggle,.nav-toggle-label{display:none}}.nav-toggle.is-active{-webkit-transform:rotate(90deg);transform:rotate(90deg)}.home-link{background:var(--theme-home-o-icon) no-repeat 50% 45%;background-size:50%;display:block;height:2.5rem;padding:0;width:2.5rem}.home-link.is-current,.home-link:hover{background-image:var(--theme-home-icon)}.edit-this-page{padding-right:.5rem}@media screen and (min-width:1024px){.edit-this-page{display:block}}.toolbar .edit-this-page a{color:var(--theme-muted-font-color)}.breadcrumbs{display:none;-webkit-box-flex:1;-ms-flex:1 1;flex:1 1;padding:0 .5rem 0 .75rem;line-height:1}@media screen and (min-width:1024px){.breadcrumbs{display:block}}a+.breadcrumbs{padding-left:.05rem}.breadcrumbs ul{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;margin:0;padding:0;list-style:none}.breadcrumbs li{display:inline;margin:0}.breadcrumbs li::after{content:"\2192";padding:0 .5rem}.breadcrumbs li:last-of-type::after{content:none}.page-versions{margin-right:.7rem;position:relative;line-height:1}@media screen and (min-width:1024px){.page-versions{display:block}}.page-versions .version-menu-toggle{color:inherit;background:var(--theme-chevron-icon) no-repeat;background-position:right .5rem top 50%;background-size:auto .75em;border:none;outline:none;line-height:inherit;padding:.5rem 1.5rem .5rem .5rem;position:relative;z-index:3}.page-versions .version-menu{border:1px solid transparent;background-color:var(--theme-page-version-menu-background);padding:1.25rem .5rem .5rem;position:absolute;top:0;left:0;width:100%}.page-versions:not(.is-active) .version-menu{display:none}.page-versions .version{display:block;padding-top:.5rem}.page-versions .version.is-current{display:none}.page-versions .version.is-missing{color:var(--theme-page-version-missing-font-color);font-style:italic;text-decoration:none}.toc{margin:0}.toc-menu{background:var(--theme-sidebar-background);border-radius:.8rem;color:var(--theme-toc-font-color);padding:.4rem}.toc.sidebar .toc-menu{position:sticky;top:3.88889rem}.toc .toc-menu h3{color:var(--theme-heading-font-color);font-size:1.22222rem;font-weight:600;line-height:1.3;margin:0;padding:.5rem}.toc.sidebar .toc-menu h3{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}.toc .toc-menu ul{font-size:.88889rem;line-height:1;list-style:none;padding:.2rem}.toc.sidebar .toc-menu ul{margin-top:0;max-height:calc(100vh - 6.38889rem);overflow-y:scroll;scrollbar-color:var(--theme-scrollbar-thumb-color) transparent;scrollbar-width:thin}@media screen and (min-width:1024px){.toc .toc-menu h3{font-size:1.22222rem}.toc .toc-menu ul{font-size:.88889rem}}.toc .toc-menu li[data-level="2"] a{padding:.5rem .5rem 0 1.5rem}.toc .toc-menu li[data-level="3"] a{padding:.4rem .5rem 0 2.5rem}.toc .toc-menu a{color:inherit;display:inline-block;padding:.6rem 0 0 .5rem}.sidebar.toc .toc-menu a{display:block;outline:none}.toc .toc-menu a.is-active{font-weight:600}.toc .toc-menu .is-hidden-toc{display:none!important}.doc{color:var(--theme-doc-font-color);font-size:inherit;-webkit-hyphens:none;-ms-hyphens:none;hyphens:none;line-height:1.3;margin:0 auto;max-width:40rem;padding:0 1rem 1.5rem}@media screen and (min-width:1024px){.doc{-webkit-box-flex:1;-ms-flex:auto;flex:auto;font-size:.94444rem;margin:0 2rem;max-width:50rem;min-width:0}}.doc h1,.doc h2,.doc h3,.doc h4,.doc h5,.doc h6{color:var(--theme-heading-font-color);font-weight:600;-webkit-hyphens:none;-ms-hyphens:none;hyphens:none;margin:1rem 0 0;padding-left:1.5rem}.doc>h1.page:first-child{font-size:2rem;margin:2.5rem 0;padding-left:0}#preamble+.sect1,.doc .sect1+.sect1{margin-top:1rem}.doc h2:not(.discrete){border-top:1px solid var(--theme-section-divider-color);padding-bottom:.1rem;padding-top:.4rem}.doc h1 .anchor,.doc h2 .anchor,.doc h3 .anchor,.doc h4 .anchor,.doc h5 .anchor,.doc h6 .anchor{position:absolute;text-decoration:none;margin-left:-1.5rem;font-size:.8em;font-weight:600;padding-top:.05em;width:1.5rem}.doc h1 .anchor::before,.doc h2 .anchor::before,.doc h3 .anchor::before,.doc h4 .anchor::before,.doc h5 .anchor::before,.doc h6 .anchor::before{content:"\00a7"}.doc p{margin:0}.doc .tableblock p{font-size:inherit}.doc a{color:var(--theme-link-font-color);text-decoration:underline}.doc a:hover{color:var(--theme-link_hover-font-color)}.doc a.unresolved{color:var(--theme-important-color)}.doc i.fa{font-style:normal}.doc p code,.doc thead code{color:var(--theme-code-font-color);background:var(--theme-panel-background);border-radius:.25em;font-size:.77778rem;padding:0 .15em}.doc pre{font-size:.77778rem;margin:0}.doc blockquote{margin:0}.doc .right{float:right}.doc .left{float:left}.doc .underline{text-decoration:underline}.doc .line-through{text-decoration:line-through}.doc .dlist,.doc .exampleblock,.doc .imageblock,.doc .listingblock,.doc .literalblock,.doc .olist,.doc .paragraph,.doc .partintro,.doc .quoteblock,.doc .sidebarblock,.doc .ulist,.doc .verseblock{margin:1rem 0 0}.doc table.tableblock{border-collapse:collapse;font-size:.83333rem;margin:2rem 0}.doc table.stretch{width:100%}.doc table.tableblock>:not(thead) th,.doc table.tableblock td,.doc table.tableblock thead th{padding:.5rem}.doc .halign-left{text-align:left}.doc .halign-right{text-align:right}.doc .halign-center{text-align:center}.doc .valign-top{vertical-align:top}.doc .valign-bottom{vertical-align:bottom}.doc .valign-middle{vertical-align:middle}.doc .admonitionblock{margin:1.4rem 0 0}.doc .admonitionblock p,.doc .admonitionblock td.content{border-radius:.75rem;font-size:.88889rem}.doc .admonitionblock td.content>:first-child{margin:0}.doc .admonitionblock pre{font-size:.83333rem}.doc .admonitionblock td.content code{color:var(--theme-code-font-color);font-size:.9em;padding:.125em .25em}.doc .admonitionblock>table{border-collapse:collapse;table-layout:fixed;position:relative;width:100%}.doc .admonitionblock td.content{background:var(--theme-admonition-background);padding:.8rem 1rem .4rem;width:100%}.doc .admonitionblock .icon{position:absolute;top:0;left:0;font-size:.83333rem;padding:0 .5rem;height:1.25rem;line-height:1;font-weight:600;text-transform:uppercase;border-radius:.45rem;-webkit-transform:translate(-.5rem,-50%);transform:translate(-.5rem,-50%)}.doc .admonitionblock.caution .icon{background-color:var(--theme-caution-color);color:var(--theme-admonition-on-color)}.doc .admonitionblock.important .icon{background-color:var(--theme-important-color);color:var(--theme-admonition-on-color)}.doc .admonitionblock.note .icon{background-color:var(--theme-note-color);color:var(--theme-admonition-on-color)}.doc .admonitionblock.tip .icon{background-color:var(--theme-tip-color);color:var(--theme-admonition-on-color)}.doc .admonitionblock.warning .icon{background-color:var(--theme-warning-color);color:var(--theme-admonition-on-color)}.doc .admonitionblock .icon i{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;height:100%}.doc .admonitionblock .icon i::after{content:attr(title)}.doc .imageblock{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.doc .imageblock img{display:block}.doc .image>img,.doc .imageblock img{height:auto;max-width:100%}.doc .quoteblock{background:var(--theme-quote-background);border-left:5px solid var(--theme-quote-border-color);color:var(--theme-quote-font-color);padding:.25rem 2rem 1.25rem}.doc .quoteblock .attribution{color:var(--theme-quote-attribution-font-color);font-size:.83333rem;margin-top:.75rem}.doc .quoteblock blockquote{margin-top:1rem}.doc .quoteblock .paragraph{font-style:italic}.doc .quoteblock cite{padding-left:1em}.doc table.tableblock .paragraph{margin:0;padding:0}.doc .olist .admonitionblock,.doc .ulist .admonitionblock,.doc table.tableblock .admonitionblock{padding:0}.doc ol,.doc ul{margin:0;padding:0 0 0 2rem}.doc ol.arabic{list-style-type:decimal}.doc ol.decimal{list-style-type:decimal-leading-zero}.doc ol.loweralpha{list-style-type:lower-alpha}.doc ol.upperalpha{list-style-type:upper-alpha}.doc ol.lowerroman{list-style-type:lower-roman}.doc ol.upperroman{list-style-type:upper-roman}.doc ol.lowergreek{list-style-type:lower-greek}.doc ul.checklist{padding-left:.5rem;list-style:none}.doc ul.checklist p>i.fa-check-square-o:first-child,.doc ul.checklist p>i.fa-square-o:first-child{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;width:1.25rem}.doc ul.checklist i.fa-check-square-o::before{content:"\2713"}.doc ul.checklist i.fa-square-o::before{content:"\274f"}.doc .dlist .dlist,.doc .dlist .olist,.doc .dlist .ulist,.doc .olist .dlist,.doc .olist .olist,.doc .olist .ulist,.doc .ulist .dlist,.doc .ulist .olist,.doc .ulist .ulist{margin-top:.5rem}.doc .olist li,.doc .ulist li{margin-bottom:.5rem}.doc .admonitionblock .listingblock,.doc .olist .listingblock,.doc .ulist .listingblock{padding:0}.doc .admonitionblock .title,.doc .exampleblock .title,.doc .imageblock .title,.doc .listingblock .title,.doc .literalblock .title,.doc .openblock .title,.doc .tableblock caption{color:var(--theme-caption-font-color);font-size:.88889rem;font-weight:600;font-style:italic;-webkit-hyphens:none;-ms-hyphens:none;hyphens:none;letter-spacing:.01em;padding-bottom:.075rem;text-align:left}.doc .imageblock .title{margin-top:.5rem;padding-bottom:0}.doc .admonitionblock .title+.paragraph{margin-top:0}.doc .exampleblock>.content{background:var(--theme-example-background);border:.15rem solid var(--theme-pre-border-color);border-radius:.5rem;padding:.75rem}.doc .exampleblock>.content>:first-child{margin-top:0}.doc .sidebarblock{background:var(--theme-sidebar-background);border-radius:.75rem;padding:.75rem 1.5rem}.doc .sidebarblock>.content>.title{font-size:1.25rem;font-weight:600;line-height:1.3;margin-bottom:-.3em;text-align:center}.doc .sidebarblock>.content>:not(.title):first-child{margin-top:0}.doc .listingblock.wrap pre,.doc .tableblock pre{white-space:pre-wrap}.doc pre.highlight code,.doc pre:not(.highlight){background:var(--theme-panel-background);border:.15rem solid var(--theme-pre-border-color);border-radius:.5rem;display:block;overflow-x:auto;padding:1.25rem .75rem .75rem}.doc pre.highlight{position:relative}.doc .listingblock code[data-lang]::before{content:attr(data-lang);color:var(--theme-highlight-comment-font-color);font-size:.75rem;letter-spacing:.05em;line-height:1;text-transform:uppercase;position:absolute;top:.25rem;right:.25rem}.doc .dlist dt{font-style:italic}.doc .dlist dd{margin:0 0 .3rem 1.5rem}.doc .colist{font-size:.88889rem;margin:.25rem 0 -.25rem}.doc .colist>table>tbody>tr>:first-child,.doc .colist>table>tr>:first-child{padding:.25em .5rem 0;vertical-align:top}.doc .colist>table>tbody>tr>:last-child,.doc .colist>table>tr>:last-child{padding:.25rem 0}.doc .conum[data-value]{border:1px solid;border-radius:100%;display:inline-block;font-family:Roboto,sans-serif;font-size:.75rem;font-style:normal;height:1.25em;line-height:1.2;text-align:center;width:1.25em;letter-spacing:-.25ex;text-indent:-.25ex}.doc .conum[data-value]::after{content:attr(data-value)}.doc .conum[data-value]+b{display:none}.doc b.button{white-space:nowrap}.doc b.button::before{content:"[";padding-right:.25em}.doc b.button::after{content:"]";padding-left:.25em}.doc kbd{display:inline-block;font-size:.66667rem;background:var(--theme-panel-background);border:1px solid var(--theme-doc-font-color);border-radius:.25em;-webkit-box-shadow:0 1px 0 var(--theme-doc-font-color),0 0 0 .1em var(--theme-background) inset;box-shadow:0 1px 0 var(--theme-doc-font-color),0 0 0 .1em var(--theme-background) inset;padding:.25em .5em;vertical-align:text-bottom;white-space:nowrap}.doc .keyseq,.doc kbd{line-height:1}.doc .keyseq{font-size:.88889rem}.doc .keyseq kbd{margin:0 .125em}.doc .keyseq kbd:first-child{margin-left:0}.doc .keyseq kbd:last-child{margin-right:0}.doc .menuseq i.caret::before{content:"\203a";font-size:1.1em;font-weight:600;line-height:.90909}.doc .icon i::after,.doc .menuseq,.doc .path,.doc a.bare,.doc b.button,.doc code,.doc kbd{-webkit-hyphens:none;-ms-hyphens:none;hyphens:none}.doc td.tableblock,.doc th.tableblock{word-break:break-word}nav.pagination{border-top:1px solid var(--theme-section-divider-color);line-height:1;margin-top:1rem;padding-top:.75rem}nav.pagination,nav.pagination span{display:-webkit-box;display:-ms-flexbox;display:flex}nav.pagination span{-webkit-box-flex:50%;-ms-flex:50%;flex:50%;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}nav.pagination .next{margin-left:auto;text-align:right}nav.pagination span::before{color:var(--theme-muted-font-color);font-size:.75em}nav.pagination .prev::before{content:"Previous page"}nav.pagination .next::before{content:"Next page"}nav.pagination a{font-weight:600;line-height:1.3;position:relative}nav.pagination a::after,nav.pagination a::before{color:var(--theme-muted-font-color);position:absolute;width:1rem}nav.pagination .prev a::before{content:"<";-webkit-transform:translateX(-100%);transform:translateX(-100%)}nav.pagination .next a::after{content:">"}html.is-clipped--navbar{overflow-y:hidden}.navbar{background:var(--color-jet-70);color:var(--color-white);font-size:.88889rem;height:2.11111rem;position:fixed;top:0;width:100%;word-wrap:break-word;z-index:4}.navbar a{text-decoration:none}.navbar-brand .navbar-item:first-child,.navbar-brand .navbar-item:first-child a{color:var(--color-white);font-size:1.22222rem}.navbar-brand .separator{padding:0 .375rem}@media screen{.navbar-end .navbar-link,.navbar-end>.navbar-item{color:var(--color-white)}.navbar-end .navbar-link:hover,.navbar-end>a.navbar-item:hover{background:var(--color-jet-70);color:var(--color-white)}.navbar-end .navbar-link::after{border-color:var(--color-white)}.navbar-item.has-dropdown:hover .navbar-link{background:var(--color-jet-70);color:var(--color-white)}}.navbar-brand{-webkit-box-align:stretch;-ms-flex-align:stretch;align-items:stretch;display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-negative:0;flex-shrink:0;height:2.11111rem}.navbar-burger{color:var(--color-white);background:none;border:none;outline:none;line-height:1;height:2.11111rem;position:relative;width:2.75rem;margin-left:auto;padding:0}.navbar-burger span{background:var(--color-white);display:block;height:1px;left:50%;margin-left:-7px;position:absolute;top:50%;width:15px}.navbar-burger span:first-child{margin-top:-6px}.navbar-burger span:nth-child(2){margin-top:-1px}.navbar-burger span:nth-child(3){margin-top:4px}.navbar-burger.is-active span:first-child{margin-left:-5px;-webkit-transform:rotate(45deg);transform:rotate(45deg);-webkit-transform-origin:left top;transform-origin:left top}.navbar-burger.is-active span:nth-child(2){opacity:0}.navbar-burger.is-active span:nth-child(3){margin-left:-5px;-webkit-transform:rotate(-45deg);transform:rotate(-45deg);-webkit-transform-origin:left bottom;transform-origin:left bottom}.navbar-menu{display:none}.navbar-item,.navbar-link{color:var(--color-jet-70);display:block;line-height:1;padding:.5rem 1rem;position:relative}.navbar-item{-webkit-box-flex:0;-ms-flex:none;flex:none}.navbar-item.has-dropdown{padding:0}.navbar-item .icon{width:1.1rem;height:1.1rem;display:block}.navbar-link{padding-right:2.5em}.navbar-dropdown .navbar-item{padding-left:1.5rem;padding-right:1.5rem}.navbar-divider{background-color:var(--color-jet-70);border:none;height:1px;margin:.25rem 0}@media screen{.navbar,.navbar-end,.navbar-menu{-webkit-box-align:stretch;-ms-flex-align:stretch;align-items:stretch;display:-webkit-box;display:-ms-flexbox;display:flex}.navbar-burger{display:none}.navbar-item,.navbar-link{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex}.navbar-item.has-dropdown{-webkit-box-align:stretch;-ms-flex-align:stretch;align-items:stretch}.navbar-item.is-hoverable:hover .navbar-dropdown{display:block}.navbar-link::after{border-width:0 0 1px 1px;border-style:solid;content:" ";display:block;height:.5em;pointer-events:none;position:absolute;-webkit-transform:rotate(-45deg);transform:rotate(-45deg);width:.5em;margin-top:-.375em;right:1.125em;top:50%}.navbar-menu{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1}.navbar-end{-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end;margin-left:auto}.navbar-dropdown{background-color:var(--color-gray-30);border:1px solid var(--color-jet-70);border-top:none;border-radius:0 0 .25rem .25rem;display:none;top:100%;left:0;min-width:100%;position:absolute}.navbar-dropdown .navbar-item{padding:.2rem 3rem .2rem 1rem;white-space:nowrap}.navbar-dropdown .navbar-item:last-child{border-radius:inherit}.navbar-dropdown.is-right{left:auto;right:0}.navbar-dropdown a.navbar-item:hover{background-color:var(--color-white)}}.navbar .button{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:var(--color-white);border:1px solid var(--color-gray-30);border-radius:.15rem;height:1.75rem;color:var(--color-jet-70);padding:0 .75em;white-space:nowrap}footer.footer{background-color:var(--theme-footer-background);color:var(--theme-footer-font-color);font-size:.94444rem;line-height:1.3;padding:.2rem 1rem}.footer p{margin:0}.footer a{color:var(--theme-footer-link-font-color)}

/*! Adapted from the GitHub style by Vasily Polovnyov <vast@whiteants.net> */.hljs-comment,.hljs-quote{color:var(--theme-highlight-comment-font-color);font-style:italic}.hljs-keyword,.hljs-selector-tag,.hljs-subst{color:var(--theme-highlight-keyword-font-color)}.hljs-doctag,.hljs-literal,.hljs-number,.hljs-string,.hljs-tag .hljs-attr,.hljs-template-variable,.hljs-variable{color:var(--theme-highlight-literal-font-color)}.hljs-section,.hljs-selector-id,.hljs-title{color:var(--theme-highlight-new_method-font-color)}.hljs-subst{font-weight:400}.hljs-class .hljs-title,.hljs-type{color:#458;font-weight:600}.hljs-attribute,.hljs-name,.hljs-tag{color:navy;font-weight:400}.hljs-link,.hljs-regexp{color:#009926}.hljs-bullet,.hljs-symbol{color:#990073}.hljs-built_in,.hljs-builtin-name{color:#0086b3}.hljs-meta{color:var(--theme-highlight-keyword-font-color);font-weight:600}.hljs-deletion{background:#fdd}.hljs-addition{background:#dfd}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:600}@page{margin:.5in}@media print{.hide-for-print{display:none!important}html{font-size:.94444rem}a{color:inherit!important;text-decoration:underline}a.bare,a[href^="#"],a[href^="mailto:"]{text-decoration:none}img,object,svg,tr{page-break-inside:avoid}thead{display:table-header-group}pre{-webkit-hyphens:none;-ms-hyphens:none;hyphens:none;white-space:pre-wrap}body{padding-top:2rem}.navbar{background:none;color:inherit;position:absolute}.navbar *{color:inherit!important}#topbar-nav,.nav-container,.toolbar{display:none}.doc{color:inherit;margin:auto;max-width:none;padding-bottom:2rem}.doc .listingblock code[data-lang]::before{display:block}footer.footer{background:none;border-top:1px solid var(--color-gray-30);color:var(--theme-quote-attribution-font-color);padding:.5rem}.footer *{color:inherit}}