'Evaluates a string in the context of a specified object. A
task runner can use this action to evaluate SQL queries stored
in Amazon S3.
:type pipeline_id: string
:param pipeline_id: The identifier of the pipeline.
:type object_id: string
:param object_id: The identifier of the object.
:type expression: string
:param expression: The expression to evaluate.'

def evaluate_expression(self, pipeline_id, expression, object_id):

    params = {'pipelineId': pipeline_id, 'objectId': object_id, 'expression': expression}
    return self.make_request(action='EvaluateExpression', body=json.dumps(params))
