@classmethod
def create_from_env(cls):
    'Create from environment.'
    return cls(reader_conn_string=os.environ['READER_CONN_STRING'], writer_conn_string=os.environ['WRITER_CONN_STRING'])
Create from environment.
@classmethod
def create_from_env(cls):
    
    return cls(reader_conn_string=os.environ['READER_CONN_STRING'], writer_conn_string=os.environ['WRITER_CONN_STRING'])