import { ctxset } from "https://deno.land/x/denops_std@v3.9.0/function/nvim/mod.ts";
Sets the |context| at {index} from the top of the |context-stack| to that represented by {context}. {context} is a Dictionary with context data (|context-dict|). If {index} is not given, it is assumed to be 0 (i.e.: top).