code: def sample(self, k) -> "SequenceData":
      return SequenceV1Data(
          self.series_tree,
          columns=self.columns,
          step_range=self.step_range,
          n_items=k,
      )
  
imports: from typing import Generic, Union, Tuple, TypeVar, Dict, Iterator, Any, List
  from itertools import islice
  import numpy
  import logging
  from aim.sdk.tracker import STEP_HASH_FUNCTIONS
  from aim.storage.treeview import TreeView
  from aim.storage.arrayview import ArrayView
  from aim.storage.context import Context
  from aim.storage.hashing import hash_auto
  from typing import TYPE_CHECKING
label_desc: Use image node_id 4 for calling the SequenceV1Data obj's underlying member method code with example usage: obj.sample(k) and returns: SequenceV1Data