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-- @module PhysicsContactPostSolve
-- @parent_module cc

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--  get friction between two bodies
-- @function [parent=#PhysicsContactPostSolve] getFriction 
-- @param self
-- @return float#float ret (return value: float)
        
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--  get surface velocity between two bodies
-- @function [parent=#PhysicsContactPostSolve] getSurfaceVelocity 
-- @param self
-- @return vec2_table#vec2_table ret (return value: vec2_table)
        
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--  get restitution between two bodies
-- @function [parent=#PhysicsContactPostSolve] getRestitution 
-- @param self
-- @return float#float ret (return value: float)
        
return nil