code: def is_initalised_estimator(estimator: BaseEstimator) -> bool:
      """Check if estimator is initialised BaseEstimator object."""
      if isinstance(estimator, BaseEstimator):
          return True
      return False
  
file_path: sktime/sktime/benchmarking/benchmarks.py
imports: from typing import Callable, Optional, Union
  import pandas
  from sktime.base import BaseEstimator
  from sktime.utils.validation._dependencies import _check_soft_dependencies
label_desc: Use image node_id 1 for calling a global function with example usage: is_initalised_estimator(estimator) and returns: False, True