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numpy.ma.MaskedArray.dump
method
MaskedArray.dump(file)- 
    
Dump a pickle of the array to the specified file. The array can be read back with pickle.load or numpy.load.
Parameters: - 
           
file : str - 
           
A string naming the dump file.
 
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Licensed under the 3-clause BSD License.
 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.ma.MaskedArray.dump.html