class_docstr: A simple ordered set to dedup steps.
class_docstr_tok: ["A","simple","ordered","set","to","dedup","steps","."]
docstr: Get a step by index.
docstr_tok: ["Get","a","step","by","index","."]
code: def __getitem__(self, index):
      """Get a step by index."""
      return self._steps_list[index]
  
imports: from __future__ import absolute_import
  import logging
  import secrets
  from typing import Sequence, Union, List
  from sagemaker.workflow.entities import RequestType
  from sagemaker.workflow.function_step import _FunctionStep
  from sagemaker.workflow.steps import Step, StepTypeEnum, PropertyFile
  from sagemaker.workflow.condition_step import ConditionStep
  from sagemaker.workflow.step_collections import StepCollection
  from sagemaker.workflow.step_outputs import get_step
  from sagemaker.workflow.pipeline_definition_config import PipelineDefinitionConfig
  from sagemaker.workflow.step_outputs import StepOutput
  from sagemaker.workflow.utilities import step_compilation_context_manager, get_config_hash, get_code_hash
  from sagemaker.utils import sagemaker_timestamp
label_desc: Use image node_id 3 for calling the _StepsSet obj's underlying member method code with example usage: obj.__getitem__(index) and returns: self