def LogInfo(msg):
  logging.getLogger('').log(APPINFO, msg)
estimated covariance for coefficients for exogeneous variables or fixed effects
dataset/ETHPy150Open google/gfw-toolkit/toolkit/utils/log_utils.py/LogInfo--crossover with--dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/sandbox/panel/mixed.py/OneWayMixed.cov_params