@classmethod<EOL><INDENT>def validate_parameters(cls, parameters, schema=None):<DEDENT>
if schema is None:<EOL><INDENT>schema = cls.get_parameters_schema()<EOL><DEDENT>jsonschema.validate(parameters, schema)<EOL>
Validate parameters format against schema specification
        Raises:
          - ValidationError if the instance is invalid
          - SchemaError if the schema itself is invalid