code: def load_template(self, name, *parameters):
          
          template, fields, header_fields = self._set_templates_fields_and_header_fields(name, parameters)
          self._init_new_message_stack(template, fields, header_fields)
docs: Load a message template saved with `Save template`.
          Optional parameters are default values for message header separated with
          colon.
  
          Examples:
          | Load Template | MyMessage | header_field:value |