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((function sign
(signature int
(parameters
(declare (in) int x))
((return (expression int / (var_ref x) (expression int abs (var_ref x))))))
(signature ivec2
(parameters
(declare (in) ivec2 x))
((return (expression ivec2 sign (var_ref x)))))
(signature ivec3
(parameters
(declare (in) ivec3 x))
((return (expression ivec3 sign (var_ref x)))))
(signature ivec4
(parameters
(declare (in) ivec4 x))
((return (expression ivec4 sign (var_ref x)))))
))
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