def parse_arguments():
parser = create_parser()<EOL>args = parser.parse_args()<EOL>if not args.role_requirements_old_commit:<EOL><INDENT>args.role_requirements_old_commit = args.role_requirements<EOL><DEDENT>if not args.rpc_product_old_commit:<EOL><INDENT>args.rpc_product_old_commit = args.rpc_product<EOL><DEDENT>return args<EOL>
Parse arguments.