code: def _validate_schema(self):
          
          try:
              log.debug("validating provider schema")
              self.validator.check_schema(self.schema)
          except jsonschema.SchemaError as e:
              raise SchemaError(
                  schema_error=e.message, provider=self.name, data=self.schema
              )
docs: Validates provider schema for syntax issues. Raises :class:`~notifiers.exceptions.SchemaError` if relevant
  
          :raises: :class:`~notifiers.exceptions.SchemaError`