code: def describe_log_stream(awsclient, log_group_name, log_stream_name):
      
      client_logs = awsclient.get_client('logs')
  
      response = client_logs.describe_log_streams(
          logGroupName=log_group_name,
          logStreamNamePrefix=log_stream_name,
          limit=1
      )
      if response['logStreams']:
          return response['logStreams'][0]
      else:
          return
docs: Get info on the specified log stream
  
      :param log_group_name: log group name
      :param log_stream_name: log stream
      :return: