code: def generate_map_rows_fn(
      target_max_block_size: int,
  ) -> Callable[
      [Iterator[Block], TaskContext, UserDefinedFunction],
      Iterator[Block],
  ]:
      """Generate function to apply the UDF to each record of blocks."""
      context = DataContext.get_current()
  
      def fn(
          blocks: Iterator[Block],
          ctx: TaskContext,
          row_fn: UserDefinedFunction,
      ) -> Iterator[Block]:
          DataContext._set_current(context)
          transform_fn = _generate_transform_fn_for_map_rows(row_fn)
          map_transformer = (
              _create_map_transformer_for_row_based_map_op(transform_fn)
          )
          map_transformer.set_target_max_block_size(
              target_max_block_size
          )
          yield from map_transformer.apply_transform(blocks, ctx)
  
      return fn
  
imports: import collections
  from types import GeneratorType
  from typing import Any, Callable, Iterable, Iterator, Optional
  import numpy
  import pandas
  import pyarrow
  import ray
  from ray.data._internal.compute import get_compute
  from ray.data._internal.execution.interfaces import PhysicalOperator
  from ray.data._internal.execution.interfaces.task_context import TaskContext
  from ray.data._internal.execution.operators.map_operator import MapOperator
  from ray.data._internal.execution.operators.map_transformer import BatchMapTransformFn, BlocksToBatchesMapTransformFn, BlocksToRowsMapTransformFn, BuildOutputBlocksMapTransformFn, MapTransformCallable, MapTransformer, Row, RowMapTransformFn
  from ray.data._internal.execution.util import make_callable_class_concurrent
  from ray.data._internal.logical.operators.map_operator import AbstractUDFMap, Filter, FlatMap, MapBatches, MapRows
  from ray.data._internal.numpy_support import is_valid_udf_return
  from ray.data._internal.util import _truncated_repr
  from ray.data.block import Block, BlockAccessor, CallableClass, DataBatch, UserDefinedFunction
  from ray.data.context import DataContext
label_desc: Use image node_id 11 for calling a global function with example usage: generate_map_rows_fn(target_max_block_size) and returns: fn