simple-salesforce-mdapi-methods-return-tuples-not-dicts

All simple-salesforce mdapi methods (deploy, check_deploy_status, check_retrieve_status) return tuples, not dicts. Calling .get() on these return values causes AttributeError at runtime. check_deploy_status returns a 4-tuple (state, state_detail, deployment_detail, run_test_result); deploy returns (deployment_id, state).