How to translate this entry into stylus?

Question

css

Hello. Please tell me how to transfer this entry to stylus?

@primary-button-bg: #fe9a05;
 @primary-button-bg-g: spin(lighten(desaturate(@primary-button-bg, 21.4%), 3.3%), -5);

 @primary-button-bg-h: spin(darken(desaturate(@primary-button-bg, 2.3%), 0.8%), -7);
 @primary-button-bg-h-g: spin(darken(desaturate(@primary-button-bg, 30.2%), 3.9%), -9);