code: def __init__(self, name, num_steps=2, depends_on=None):
      steps = []
      previous_step = None
      for i in range(num_steps):
          step_depends_on = (
              depends_on if not previous_step else [previous_step]
          )
          step = CustomStep(
              name=f"{name}-{i}", depends_on=step_depends_on
          )
          steps.append(step)
          previous_step = step
      super(CustomStepCollection, self).__init__(
          name=name, steps=steps, depends_on=depends_on
      )
  
imports: from __future__ import absolute_import
  from typing import List, Optional, Union, Callable
  from sagemaker.utils import base_from_name
  from sagemaker.workflow.properties import Properties
  from sagemaker.workflow.retry import RetryPolicy
  from sagemaker.workflow.step_outputs import StepOutput
  from sagemaker.workflow.steps import ConfigurableRetryStep, Step, StepTypeEnum, CacheConfig
  from sagemaker.workflow.step_collections import StepCollection
  from sagemaker.workflow.utilities import execute_job_functions
  from sagemaker.workflow.entities import RequestType
  from sagemaker.remote_function.job import _JobSettings
label_desc: Use image node_id 1 to create a new CustomStepCollection object from inherited base classes: StepCollection with example: obj = CustomStepCollection(name, num_steps, depends_on)