class_docstr: A MapTransformFn that converts input blocks to rows.
class_docstr_tok: ["A","MapTransformFn","that","converts","input","blocks","to","rows","."]
code: def __call__(
      self, blocks: Iterable[Block], _: TaskContext
  ) -> Iterable[Row]:
      for block in blocks:
          block = BlockAccessor.for_block(block)
          for row in block.iter_rows(public_row_format=True):
              yield row
  
imports: import itertools
  from abc import abstractmethod
  from enum import Enum
  from typing import Any, Callable, Dict, Iterable, List, Optional, TypeVar, Union
  from ray.data._internal.block_batching.block_batching import batch_blocks
  from ray.data._internal.execution.interfaces.task_context import TaskContext
  from ray.data._internal.output_buffer import BlockOutputBuffer
  from ray.data.block import Block, BlockAccessor, DataBatch
label_desc: Use image node_id 2 for calling the BlocksToRowsMapTransformFn obj's underlying member method code with example usage: obj.__call__(blocks, _) without return types