import { type SelectOperation } from "https://deno.land/x/async_channels@v1.0.0-rc8/mod.ts";
definition: SelectGetOperation<T> | SelectSendOperation<T>
x/async_channels/mod.ts>SelectOperation
import { type SelectOperation } from "https://deno.land/x/async_channels@v1.0.0-rc8/mod.ts";