code: def check_mwt(filename):
      """
      Checks whether or not there are MWTs in the given conll file
      """
      doc = CoNLL.conll2doc(filename)
      data = doc.get_mwt_expansions(False)
      return len(data) > 0
  
file_path: stanza/stanza/utils/training/run_mwt.py
imports: import logging
  import math
  from stanza.models import mwt_expander
  from stanza.models.common.doc import Document
  from stanza.utils.conll import CoNLL
  from stanza.utils.training import common
  from stanza.utils.training.common import Mode
  from stanza.utils.max_mwt_length import max_mwt_length
label_desc: Use image node_id 1 for calling a global function with example usage: check_mwt(filename) and returns: unknown