code: def prefix_meta(event):
      """
      Metafy the next character typed. This is for keyboards without a meta key.
  
      Sometimes people also want to bind other keys to Meta, e.g. 'jj'::
  
          registry.add_key_binding('j', 'j', filter=ViInsertMode())(prefix_meta)
      """
      event.cli.input_processor.feed(KeyPress(Keys.Escape))
  
imports: from __future__ import unicode_literals
  from prompt_toolkit.enums import IncrementalSearchDirection, SEARCH_BUFFER
  from prompt_toolkit.selection import PasteMode
  from six.moves import range
  import six
  from .completion import generate_completions, display_completions_like_readline
  from prompt_toolkit.document import Document
  from prompt_toolkit.enums import EditingMode
  from prompt_toolkit.key_binding.input_processor import KeyPress
  from prompt_toolkit.keys import Keys
label_desc: Use image node_id 47 for calling a global function with example usage: prefix_meta(event) without return types