code: def prophet_copy(m, cutoff=None):
      """Copy Prophet object
  
      Parameters
      ----------
      m: Prophet model.
      cutoff: pd.Timestamp or None, default None.
          cuttoff Timestamp for changepoints member variable.
          changepoints are only retained if 'changepoints <= cutoff'
  
      Returns
      -------
      Prophet class object with the same parameter with model variable
      """
      if m.history is None:
          raise Exception(
              "This is for copying a fitted Prophet object."
          )
  
      if m.specified_changepoints:
          changepoints = m.changepoints
          if cutoff is not None:
              # Filter change points '< cutoff'
              last_history_date = max(
                  m.history["ds"][m.history["ds"] <= cutoff]
              )
              changepoints = changepoints[
                  changepoints < last_history_date
              ]
      else:
          changepoints = None
  
      # Auto seasonalities are set to False because they are already set in
      # m.seasonalities.
      m2 = m.__class__(
          growth=m.growth,
          n_changepoints=m.n_changepoints,
          changepoint_range=m.changepoint_range,
          changepoints=changepoints,
          yearly_seasonality=False,
          weekly_seasonality=False,
          daily_seasonality=False,
          holidays=m.holidays,
          holidays_mode=m.holidays_mode,
          seasonality_mode=m.seasonality_mode,
          seasonality_prior_scale=m.seasonality_prior_scale,
          changepoint_prior_scale=m.changepoint_prior_scale,
          holidays_prior_scale=m.holidays_prior_scale,
          mcmc_samples=m.mcmc_samples,
          interval_width=m.interval_width,
          uncertainty_samples=m.uncertainty_samples,
          stan_backend=(
              m.stan_backend.get_type()
              if m.stan_backend is not None
              else None
          ),
      )
      m2.extra_regressors = deepcopy(m.extra_regressors)
      m2.seasonalities = deepcopy(m.seasonalities)
      m2.country_holidays = deepcopy(m.country_holidays)
      return m2
  
imports: from __future__ import absolute_import, division, print_function
  import logging
  from tqdm.auto import tqdm
  from copy import deepcopy
  import concurrent.futures
  import numpy
  import pandas
label_desc: Use image node_id 4 for calling a global function with example usage: prophet_copy(m, cutoff) and returns: m2