code: def default_missing_value_for_dtype(dtype):
      """
      Get the default fill value for `dtype`.
      """
      try:
          return _FILLVALUE_DEFAULTS[dtype]
      except KeyError:
          raise NoDefaultMissingValue(
              "No default value registered for dtype %s." % dtype
          )
  
imports: from collections import OrderedDict
  from datetime import datetime
  from distutils.version import StrictVersion
  from warnings import catch_warnings, filterwarnings
  import six
  import numpy
  from numpy import array_equal, broadcast, busday_count, datetime64, diff, dtype, empty, flatnonzero, hstack, isnan, nan, vectorize, where
  from numpy.lib.stride_tricks import as_strided
  from toolz import flip
label_desc: Use image node_id 6 for calling a global function with example usage: default_missing_value_for_dtype(dtype) and returns: _FILLVALUE_DEFAULTS