class_docstr: Creates a dataframe containing the lineage assoociations of a SageMaker object.
docstr: Given a trial component name retrieve a start arn.
  
  Args:
      tc_name (str): Name of the trial compoonent.
  
  Returns:
    str: The arn of the trial component.
docstr_tok: ["Given","a","trial","component","name","retrieve","a","start","arn",".","Args",":","tc_name","(","str",")",":","Name","of","the","trial","compoonent",".","Returns",":","str",":","The","arn","of","the","trial","component","."]
code: def _get_start_arn_from_trial_component_name(
      self, tc_name: str
  ) -> str:
      """Given a trial component name retrieve a start arn.
  
      Args:
          tc_name (str): Name of the trial compoonent.
  
      Returns:
        str: The arn of the trial component.
      """
      response: Any = (
          self._session.sagemaker_client.describe_trial_component(
              TrialComponentName=tc_name
          )
      )
      tc_arn: str = response["TrialComponentArn"]
      return tc_arn
  
imports: from __future__ import absolute_import
  import logging
  from typing import Optional, Any, Iterator
  import pandas
  from pandas import DataFrame
  from sagemaker.lineage._api_types import AssociationSummary
  from sagemaker.lineage.association import Association
label_desc: Use image node_id 6 for calling the LineageTableVisualizer obj's underlying member method code with example usage: obj._get_start_arn_from_trial_component_name(tc_name) and returns: tc_arn