code: def test_simple_text_input():
      # Simple text input, followed by enter.
      result, cli = _feed_cli_with_input("hello\r")
      assert result.text == "hello"
      assert cli.current_buffer.text == "hello"
  
imports: from __future__ import annotations
  from functools import partial
  import pytest
  from prompt_toolkit.clipboard import ClipboardData, InMemoryClipboard
  from prompt_toolkit.enums import EditingMode
  from prompt_toolkit.filters import ViInsertMode
  from prompt_toolkit.history import InMemoryHistory
  from prompt_toolkit.input.defaults import create_pipe_input
  from prompt_toolkit.input.vt100_parser import ANSI_SEQUENCES
  from prompt_toolkit.key_binding.bindings.named_commands import prefix_meta
  from prompt_toolkit.key_binding.key_bindings import KeyBindings
  from prompt_toolkit.output import DummyOutput
  from prompt_toolkit.shortcuts import PromptSession
label_desc: Use image node_id 3 for calling a global function with example usage: test_simple_text_input() without return types