numpy.ma.MaskedArray.__copy__
method
- 
MaskedArray.__copy__() - 
Used if
copy.copyis called on an array. Returns a copy of the array.Equivalent to
a.copy(order='K'). 
    © 2005–2019 NumPy Developers
Licensed under the 3-clause BSD License.
    https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.ma.MaskedArray.__copy__.html