code: def sample(self, n_samples: int, sort_key: "SortKey") -> Any:
      if sort_key is None or callable(sort_key):
          raise NotImplementedError(
              f"Table sort key must be a column name, was: {sort_key}"
          )
      if self.num_rows() == 0:
          # If the pyarrow table is empty we may not have schema
          # so calling table.select() will raise an error.
          return self._empty_table()
      k = min(n_samples, self.num_rows())
      return self._sample(k, sort_key)
  
imports: import collections
  from typing import TYPE_CHECKING, Any, Dict, Iterator, List, Mapping, TypeVar, Union
  import numpy
  from ray.air.constants import TENSOR_COLUMN_NAME
  from ray.data._internal.block_builder import BlockBuilder
  from ray.data._internal.numpy_support import convert_udf_returns_to_numpy, is_array_like
  from ray.data._internal.size_estimator import SizeEstimator
  from ray.data.block import Block, BlockAccessor
  from ray.data.row import TableRow
label_desc: Use image node_id 13 for calling the TableBlockAccessor obj's underlying member method code with example usage: obj.sample(n_samples, sort_key) and returns: self, self