class_docstr: Combine several completers into one.
class_docstr_tok: ["Combine","several","completers","into","one","."]
code: def get_completions(
      self, document: Document, complete_event: CompleteEvent
  ) -> Iterable[Completion]:
      # Get all completions from the other completers in a blocking way.
      for completer in self.completers:
          yield from completer.get_completions(document, complete_event)
  
imports: from __future__ import annotations
  from abc import ABCMeta, abstractmethod
  from typing import AsyncGenerator, Callable, Iterable, Sequence
  from prompt_toolkit.document import Document
  from prompt_toolkit.eventloop import aclosing, generator_to_async_generator
  from prompt_toolkit.filters import FilterOrBool, to_filter
  from prompt_toolkit.formatted_text import AnyFormattedText, StyleAndTextTuples
label_desc: Use image node_id 2 for calling the _MergedCompleter obj's underlying member method code with example usage: obj.get_completions(document, complete_event) without return types