docs: def register_filters(self, filters, force=False):
          """
          Add/register filters.
  
          Args:
              filters (dict): Dictionary of Python functions to use as :program:`Jinja2` filters.
              force (bool): If set to ``True``, forces the registration of a filter no matter if it already exists or not.
  
          """
          for filter_name, filter_ref in filters.items():
              self.register_filter(filter_name, filter_ref, force)