import { MySQLClient } from "https://dotland.deno.dev/x/nessie@2.0.7/deps.ts";
Parameters
fn: (conn: Connection) => Promise<T>
x/nessie/deps.ts>MySQLClient#useConnection
import { MySQLClient } from "https://dotland.deno.dev/x/nessie@2.0.7/deps.ts";