Stores a pose for a transform constraint. Stores the current pose values for a transform constraint. Transform constraints adjust bone transforms to match a target bone's transform, with various mix values controlling how much each transform component is affected. Returns a percentage (0-1) that controls the mix between the constrained and unconstrained rotation. Sets a percentage (0-1) that controls the mix between the constrained and unconstrained rotation. Returns a percentage (0-1) that controls the mix between the constrained and unconstrained translation X. Sets a percentage (0-1) that controls the mix between the constrained and unconstrained translation X. Returns a percentage (0-1) that controls the mix between the constrained and unconstrained translation Y. Sets a percentage (0-1) that controls the mix between the constrained and unconstrained translation Y. Returns a percentage (0-1) that controls the mix between the constrained and unconstrained scale X. Sets a percentage (0-1) that controls the mix between the constrained and unconstrained scale X. Returns a percentage (0-1) that controls the mix between the constrained and unconstrained scale Y. Sets a percentage (0-1) that controls the mix between the constrained and unconstrained scale Y. Returns a percentage (0-1) that controls the mix between the constrained and unconstrained shear Y. Sets a percentage (0-1) that controls the mix between the constrained and unconstrained shear Y.