On this page
numpy.dtype.__reduce__
method
dtype.__reduce__()- 
    
helper for pickle
 
© 2005–2019 NumPy Developers
Licensed under the 3-clause BSD License.
 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.dtype.__reduce__.html
method
dtype.__reduce__()
   helper for pickle
© 2005–2019 NumPy Developers
Licensed under the 3-clause BSD License.
 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.dtype.__reduce__.html