def start_namespace(namespace):
	global value_type_prefix
	value_type_prefix = namespace + '.'
Performs copy from src_url to dst_url, handling various special cases.
dataset/ETHPy150Open RobotLocomotion/director/src/python/urdf_parser_py/xml_reflection/core.py/start_namespace--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/gsutil/gslib/copy_helper.py/PerformCopy