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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def export_process_element(definitions, process_id, process_attributes_dictionary):
 """ Creates process element for exported BPMN XML file. :param process_id: string object. ID of exported process element, :param definitions: an XML element ('definitions'), root element of BPMN 2.0 document :param process_attributes_dictionary: dictionary that holds attribute values of 'process' element :return: process XML element """

        process = eTree.SubElement(definitions, consts.Consts.process)
        process.set(consts.Consts.id, process_id)
        process.set(consts.Consts.is_closed, process_attributes_dictionary[consts.Consts.is_closed])
        process.set(consts.Consts.is_executable, process_attributes_dictionary[consts.Consts.is_executable])
        process.set(consts.Consts.process_type, process_attributes_dictionary[consts.Consts.process_type])

        return process