def skew(self, x=<NUM_LIT:0>, y=<NUM_LIT:0>):
if x is not <NUM_LIT:0>:<EOL><INDENT>self.skew_x(x)<EOL><DEDENT>if y is not <NUM_LIT:0>:<EOL><INDENT>self.skew_y(y)<EOL><DEDENT>return self<EOL>
Skew the element by x and y degrees
        Convenience function which calls skew_x and skew_y

        Parameters
        ----------
        x,y : float, float
            skew angle in degrees (default 0)

            If an x/y angle is given as zero degrees, that transformation is omitted.