code: def _zip(self, acc: BlockAccessor) -> "Block":
      r = self.to_arrow()
      s = acc.to_arrow()
      for col_name in s.column_names:
          col = s.column(col_name)
          # Ensure the column names are unique after zip.
          if col_name in r.column_names:
              i = 1
              new_name = col_name
              while new_name in r.column_names:
                  new_name = "{}_{}".format(col_name, i)
                  i += 1
              col_name = new_name
          r = r.append_column(col_name, col)
      return r
  
imports: import collections
  import heapq
  import random
  from typing import TYPE_CHECKING, Any, Callable, Dict, Iterator, List, Optional, Tuple, TypeVar, Union
  import numpy
  from ray._private.utils import _get_pyarrow_version
  from ray.air.constants import TENSOR_COLUMN_NAME
  from ray.data._internal.arrow_ops import transform_polars, transform_pyarrow
  from ray.data._internal.numpy_support import convert_udf_returns_to_numpy, is_valid_udf_return
  from ray.data._internal.table_block import TableBlockAccessor, TableBlockBuilder
  from ray.data._internal.util import _truncated_repr, find_partitions
  from ray.data.block import Block, BlockAccessor, BlockExecStats, BlockMetadata, KeyType, U
  from ray.data.context import DataContext
  from ray.data.row import TableRow
label_desc: Use image node_id 15 for calling the ArrowBlockAccessor obj's underlying member method code with example usage: obj._zip(acc) and returns: r