proc length(self: GrooveJoint2D): float64 {.
gcsafe, locks: 0, raises: [], tags: []
.}

proc length=(self: GrooveJoint2D; val: float64) {.
gcsafe, locks: 0, raises: [], tags: []
.}

proc initialOffset(self: GrooveJoint2D): float64 {.
gcsafe, locks: 0, raises: [], tags: []
.}

proc initialOffset=(self: GrooveJoint2D; val: float64) {.
gcsafe, locks: 0, raises: [],
    tags: []
.}