code: def set_fill_value(a, fill_value):
      a = asanyarray(a)
      if getattr(fill_value, "shape", ()):
          raise ValueError(
              "da.ma.set_fill_value doesn't support array `value`s"
          )
      fill_value = np.ma.core._check_fill_value(fill_value, a.dtype)
      res = a.map_blocks(_set_fill_value, fill_value)
      a.dask = res.dask
      a._name = res.name
  
imports: from __future__ import annotations
  from functools import wraps
  import numpy
  from dask.array import chunk
  from dask.array.core import asanyarray, blockwise, elemwise, map_blocks
  from dask.array.reductions import reduction
  from dask.array.routines import _average
  from dask.array.routines import nonzero
  from dask.base import normalize_token
  from dask.utils import derived_from
label_desc: Use image node_id 16 for calling a global function with example usage: set_fill_value(a, fill_value) without return types