code: def test_cli_whoami(cli_runner: "CliRunner", cli: "Typer") -> None:
      result = cli_runner.invoke(cli, "whoami")
  
      assert result.exit_code == 0
      assert "Current User" in result.stdout
  
imports: from typing import TYPE_CHECKING
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: test_cli_whoami(cli_runner, cli) without return types