code: def __call__(self, step: int) -> float:
      return 0.1 if step >= 1000 else 0.6
  
file_path: model-optimization/tensorflow_model_optimization/python/core/common/keras/compression/schedules_test.py
imports: import tensorflow
  from tensorflow_model_optimization.python.core.common.keras.compression import schedules
label_desc: Use image node_id 1 for calling the SimpleScheduler obj's underlying member method code with example usage: obj.__call__(step) and returns: unknown