code: def cdf(self, x):
      cdf_ = _eval_bernstein_2d(x, self.cdf_grid)
      return cdf_
  
file_path: statsmodels/statsmodels/distributions/bernstein.py
imports: import numpy
  from scipy import stats
  from statsmodels.tools.decorators import cache_readonly
  from statsmodels.distributions.tools import _Grid, cdf2prob_grid, prob2cdf_grid, _eval_bernstein_dd, _eval_bernstein_2d, _eval_bernstein_1d
label_desc: Use image node_id 1 for calling the BernsteinDistributionBV obj's underlying member method code with example usage: obj.cdf(x) and returns: cdf_