code: def step_a_file_named_filename_and_encoding_with(context, filename, encoding):
      
      __encoding_is_valid = True
      assert context.text is not None, "ENSURE: multiline text is provided."
      assert not os.path.isabs(filename)
      assert __encoding_is_valid
      command_util.ensure_workdir_exists(context)
      filename2 = os.path.join(context.workdir, filename)
      pathutil.create_textfile_with_contents(filename2, context.text, encoding)
docs: Creates a textual file with the content provided as docstring.