add_hsl_effect method

add_hsl_effect

Adds the new Hue/Saturation/Luminance effect to the end of a collection.

Index of the new image effect in a collection.

def add_hsl_effect(self, hue, saturation, luminance):
    ...

Parameter	Type	Description
hue	float	The number of degrees by which the hue is adjusted.
saturation	float	The percentage by which the saturation is adjusted.
luminance	float	The percentage by which the luminance is adjusted.