import { type CanvasDocumentContent } from "https://dotland.deno.dev/x/slack_web_api_client@1.1.2/mod.ts";
x/slack_web_api_client/mod.ts>CanvasDocumentContent
import { type CanvasDocumentContent } from "https://dotland.deno.dev/x/slack_web_api_client@1.1.2/mod.ts";