def isFixedGroup(kexAlgorithm):
 return _IFixedGroupKexAlgorithm.providedBy(getKex(kexAlgorithm))

def isFixedGroup ( kexAlgorithm ) : return _IFixedGroupKexAlgorithm . providedBy ( getKex ( kexAlgorithm ) )
returns c{true} if c{kexalgorithm} has a fixed prime / generator group .