def insert_rows(self, table, rows, target_fields=None, commit_every=1000):
        raise NotImplementedError()
logarithm of probability density function
dataset/ETHPy150Open airbnb/airflow/airflow/contrib/hooks/bigquery_hook.py/BigQueryHook.insert_rows--crossover with--dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/sandbox/distributions/mv_normal.py/MVT.logpdf