tiff_file.py imports deprecated numpy module

[nimrodV81]

line 15 in tiff_file.py
from numpy.testing.utils import memusage

when importing within a pytest test suite I get the error
E ImportWarning: Importing from numpy.testing.utils is deprecated since 1.15.0, import from numpy.testing instead.

possible fix
from numpy.testing import memusage

I have
numpy 1.17.5
ubuntu 18.04
python 3.6