numpy.ma.MaskedArray.__copy__
method
- 
ma.MaskedArray.__copy__() - 
Used if
copy.copyis called on an array. Returns a copy of the array.Equivalent to
a.copy(order='K'). 
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Licensed under the 3-clause BSD License.
    https://numpy.org/doc/1.21/reference/generated/numpy.ma.MaskedArray.__copy__.html