old_contents: __version__ = "1.6.dev"
  
new_contents: from textx.metamodel import metamodel_from_file, metamodel_from_str  # noqa
  from textx.langapi import get_language, iter_languages  # noqa
  
  __version__ = "1.6.dev"
  
subject: Make metamodel factory methods and lang API available in textx package.