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import partition from "./partition.ts";import { assertEquals } from "testing/asserts.ts";
Deno.test("partition", () => {  const isStr = (v: unknown): v is string => typeof v === "string";
  {    const res: [["a", "b"], [1, 2]] = partition(      ["a", 1, "b", 2] as const,      isStr,    );    assertEquals(res[0], ["a", "b"]);    assertEquals(res[1], [1, 2]);  }
  {    const _res = partition(["a", 1, "b", 2], isStr);    // @ts-expect-error    const _: [[], []] = partition(["a", 1, "b", 2], isStr);  }
  {    const _: [(string | number)[], (string | number)[]] = partition(      ["a", 1, "b", 2],      (v) => typeof v === "string",    );  }});