code: def accept_character(event: KeyPressEvent):
      """Fill partial autosuggestion by character"""
      b = event.current_buffer
      suggestion = b.suggestion
      if suggestion and suggestion.text:
          b.insert_text(suggestion.text[0])
  
imports: import re
  import tokenize
  from io import StringIO
  from typing import Callable, List, Optional, Union, Generator, Tuple
  import warnings
  from prompt_toolkit.buffer import Buffer
  from prompt_toolkit.key_binding import KeyPressEvent
  from prompt_toolkit.key_binding.bindings import named_commands
  from prompt_toolkit.auto_suggest import AutoSuggestFromHistory, Suggestion
  from prompt_toolkit.document import Document
  from prompt_toolkit.history import History
  from prompt_toolkit.shortcuts import PromptSession
  from prompt_toolkit.layout.processors import Processor, Transformation, TransformationInput
  from IPython.core.getipython import get_ipython
  from IPython.utils.tokenutil import generate_tokens
  from .filters import pass_through
label_desc: Use image node_id 7 for calling a global function with example usage: accept_character(event) without return types