import { CustomType } from "https://deno.land/x/deno_slack_sdk@1.4.4/types/mod.ts";
Parameters
manifest: SlackManifest
x/deno_slack_sdk/types/mod.ts>CustomType#registerParameterTypes
import { CustomType } from "https://deno.land/x/deno_slack_sdk@1.4.4/types/mod.ts";