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-- @module PhysicsContactPostSolve

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-- @function [parent=#PhysicsContactPostSolve] getFriction 
-- @param self
-- @return float#float ret (return value: float)
        
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-- @function [parent=#PhysicsContactPostSolve] getSurfaceVelocity 
-- @param self
-- @return Vec2#Vec2 ret (return value: cc.Vec2)
        
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-- @function [parent=#PhysicsContactPostSolve] getRestitution 
-- @param self
-- @return float#float ret (return value: float)
        
return nil