(self)
return bool(self.impl['is_simple'](self))
True if the geometry is simple, meaning that any self-intersections
        are only at boundary points, else False
True if the geometry is simple, meaning that any self-intersections
        are only at boundary points, else False
True if the geometry is simple meaning that any self - intersections are only at boundary points else False
def is_simple(self):
        """True if the geometry is simple, meaning that any self-intersections
        are only at boundary points, else False"""
        return bool(self.impl['is_simple'](self))
def is_simple ( self ) : return bool ( self . impl [ 'is_simple' ] ( self ) )