code: def format_request_email_title(increq, **ctx):
      
      template = current_app.config["COMMUNITIES_REQUEST_EMAIL_TITLE_TEMPLATE"],
      return format_request_email_templ(increq, template, **ctx)
docs: Format the email message title for inclusion request notification.
  
      :param increq: Inclusion request object for which the request is made.
      :type increq: `invenio_communities.models.InclusionRequest`
      :param ctx: Optional extra context parameters passed to formatter.
      :type ctx: dict.
      :returns: Email message title.
      :rtype: str