((function clamp
   (signature float
     (parameters
       (declare (in) float arg0)
       (declare (in) float arg1)
       (declare (in) float arg2))
     ((return (expression float max (expression float min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))

   (signature vec2
     (parameters
       (declare (in) vec2 arg0)
       (declare (in) vec2 arg1)
       (declare (in) vec2 arg2))
     ((return (expression vec2 max (expression vec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))

   (signature vec3
     (parameters
       (declare (in) vec3 arg0)
       (declare (in) vec3 arg1)
       (declare (in) vec3 arg2))
     ((return (expression vec3 max (expression vec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))

   (signature vec4
     (parameters
       (declare (in) vec4 arg0)
       (declare (in) vec4 arg1)
       (declare (in) vec4 arg2))
     ((return (expression vec4 max (expression vec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))
))