code: def _get_map_blocks_kwargs(chunks):
      # Get keyword arguments for da.map_blocks, so that it can be used
      # with a function that returns two arguments.
      return {
          "new_axis": 0,
          "chunks": (2,) + chunks,
          "dtype": np.float32,
      }
  
imports: from collections import namedtuple
  import dask.array
  import numba
  import numpy
  from satpy.utils import get_legacy_chunk_size
label_desc: Use image node_id 3 for calling a global function with example usage: _get_map_blocks_kwargs(chunks) and returns: dict