parameters: (filtername, **options)
docstring: Return an instantiated filter. Options are passed to the filter
      initializer if wanted. Raise a ClassNotFound if not found.
docstring_summary: Return an instantiated filter. Options are passed to the filter
      initializer if wanted. Raise a ClassNotFound if not found.
docstring_tokens: Return an instantiated filter . Options are passed to the filter initializer if wanted . Raise a ClassNotFound if not found .
function: def get_filter_by_name(filtername, **options):
      """
      Return an instantiated filter. Options are passed to the filter
      initializer if wanted. Raise a ClassNotFound if not found.
      """
      cls = find_filter_class(filtername)
      if cls:
          return cls(**options)
      else:
          raise ClassNotFound('filter %r not found' % filtername)
function_tokens: def get_filter_by_name ( filtername , * * options ) : cls = find_filter_class ( filtername ) if cls : return cls ( * * options ) else : raise ClassNotFound ( 'filter %r not found' % filtername )