class_docstr: RedisTimeSeries Commands.
docstr: Append BUCKET_TIMESTAMP property to params.
code: def _append_bucket_timestamp(
      params: List[str], bucket_timestamp: Optional[str]
  ):
      """Append BUCKET_TIMESTAMP property to params."""
      if bucket_timestamp is not None:
          params.extend(["BUCKETTIMESTAMP", bucket_timestamp])
  
imports: from typing import Dict, List, Optional, Tuple, Union
  from redis.exceptions import DataError
  from redis.typing import KeyT, Number
label_desc: Use image node_id 34 for calling the TimeSeriesCommands obj's underlying member method code with example usage: obj._append_bucket_timestamp(params, bucket_timestamp) without return types