All Octicons
sidebar-collapse
Octicon sizes navigation
React
import {SidebarCollapseIcon} from '@primer/octicons-react' <SidebarCollapseIcon size={16} />
Rails
<%= render(Primer::Beta::Octicon.new(:"sidebar-collapse", size: :small)) %>
Jekyll
{% octicon sidebar-collapse height:16 %}
Figma
This icon is called sidebar-collapse
in Primer's Octicons library.