FIPPI does not allow None in q and maxit parameter

[ninsbl]

According to documentation, FIPPI endmember extraction algorithm allows q and maxit to be None: https://pysptools.sourceforge.io/eea.html#fast-iterative-pixel-purity-index-fippi
However, when I pass None to one of these parameters in FIPPI, it complains that the parameter is not of type int...