code: def get_text_content(
          primary_text=None, primary_text_type=PLAIN_TEXT_TYPE,
          secondary_text=None, secondary_text_type=PLAIN_TEXT_TYPE,
          tertiary_text=None, tertiary_text_type=PLAIN_TEXT_TYPE):
      # type: (str, str, str, str, str, str) -> TextContent
      
      text_content = TextContent()
      if primary_text:
          text_content.primary_text = __set_text_field(
              primary_text, primary_text_type)
      if secondary_text:
          text_content.secondary_text = __set_text_field(
              secondary_text, secondary_text_type)
      if tertiary_text:
          text_content.tertiary_text = __set_text_field(
              tertiary_text, tertiary_text_type)
      return text_content
docs: Responsible for building text content object using ask-sdk-model
      in Alexa skills kit display interface.
      https://developer.amazon.com/docs/custom-skills/display-interface-reference.html#textcontent-object-specifications.
  
      :param primary_text: Text for primary_text field
      :type primary_text: (optional) str
      :param primary_text_type: Type of the primary text field. Allowed
          values are `PlainText` and `RichText`.
          Defaulted to `PlainText`.
      :param secondary_text: Text for secondary_text field
      :type primary_text_type: (optional) str
      :type secondary_text: (optional) str
      :param secondary_text_type: Type of the secondary text field.
          Allowed values are `PlainText` and `RichText`.
          Defaulted to `PlainText`.
      :param tertiary_text: Text for tertiary_text field
      :type tertiary_text: (optional) str
      :param tertiary_text_type: Type of the tertiary text field.
          Allowed values are `PlainText` and `RichText`.
          Defaulted to `PlainText`.
      :return: Text Content instance with primary, secondary and tertiary
          text set.
      :rtype: TextContent
      :raises: ValueError