SkMatrix = ref object
  native*: ptr sk_matrix_t

proc newSkMatrix(scaleX, skewX, transX, skewY, scaleY, transY, persp0, persp1, persp2: float): SkMatrix {...}{.
    raises: [], tags: [].}

proc newSkMatrix(): SkMatrix {...}{.raises: [], tags: [].}

proc getIdentityMatrix(): SkMatrix {...}{.raises: [], tags: [].}

proc newSkRotationMatrix(radians: float): SkMatrix {...}{.raises: [], tags: [].}

proc newSkewMatrix(sx, sy: float): SkMatrix {...}{.raises: [], tags: [].}

converter tupleToMatrix(t: (float, float, float, float, float, float, float, float, float)): SkMatrix {...}{.
    raises: [], tags: [].}

converter tupleToMatrix(t: (int, int, int, int, int, int, int, int, int)): SkMatrix {...}{.
    raises: [], tags: [].}

template scaleX(m: SkMatrix): float

template scaleY(m: SkMatrix): float

template skewX(m: SkMatrix): float

template skewY(m: SkMatrix): float

template transX(m: SkMatrix): float

template transY(m: SkMatrix): float

template persp0(m: SkMatrix): float

template persp1(m: SkMatrix): float

template persp2(m: SkMatrix): float