code: def __init__(self, use_custom_job_prefix: bool):
      """Create a `PipelineDefinitionConfig`.
  
      Examples: Use a `PipelineDefinitionConfig` to turn on custom job prefixing::
  
          PipelineDefinitionConfig(use_custom_job_prefix=True)
  
      Args:
          use_custom_job_prefix (bool): A feature flag to toggle on/off custom name prefixing
              during pipeline orchestration.
      """
      self.use_custom_job_prefix = use_custom_job_prefix
  
label_desc: Use image node_id 1 to create a new PipelineDefinitionConfig object  with example: obj = PipelineDefinitionConfig(use_custom_job_prefix)