def _validate_field_can_be_tagged_with_redactor(self, field):
if is_alias(field.data_type):<EOL><INDENT>raise InvalidSpec(<EOL>"<STR_LIT>"<EOL>"<STR_LIT>",<EOL>field._ast_node.lineno, field._ast_node.path)<EOL><DEDENT>self._validate_object_can_be_tagged_with_redactor(field)<EOL>
Validates that the field type can be annotated and that alias does not have
conflicting annotations.