def __init__(self, service, project, dataset, prefix='<STR_LIT>'):
<EOL>self.__service = service<EOL>self.__project = project<EOL>self.__dataset = dataset<EOL>self.__prefix = prefix<EOL>self.__buckets = None<EOL>self.__descriptors = {}<EOL>self.__fallbacks = {}<EOL>self.__mapper = Mapper(prefix=prefix)<EOL>
https://github.com/frictionlessdata/tableschema-bigquery-py#storage