proc easeInQuad(x: float): float {...}{.raises: [], tags: [].}

proc easeOutQuad(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutQuad(x: float): float {...}{.raises: [], tags: [].}

proc easeInCubic(x: float): float {...}{.raises: [], tags: [].}

proc easeOutCubic(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutCubic(x: float): float {...}{.raises: [], tags: [].}

proc easeInQuart(x: float): float {...}{.raises: [], tags: [].}

proc easeOutQuart(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutQuart(x: float): float {...}{.raises: [], tags: [].}

proc easeInQuint(x: float): float {...}{.raises: [], tags: [].}

proc easeOutQuint(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutQuint(x: float): float {...}{.raises: [], tags: [].}

proc easeInSine(x: float): float {...}{.raises: [], tags: [].}

proc easeOutSine(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutSine(x: float): float {...}{.raises: [], tags: [].}

proc easeInCirc(x: float): float {...}{.raises: [], tags: [].}

proc easeOutCirc(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutCirc(x: float): float {...}{.raises: [], tags: [].}

proc easeInBack(x: float): float {...}{.raises: [], tags: [].}

proc easeOutBack(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutBack(x: float): float {...}{.raises: [], tags: [].}

proc easeInElastic(x: float): float {...}{.raises: [], tags: [].}

proc easeOutElastic(x: float): float {...}{.raises: [], tags: [].}

proc easeInOutElastic(x: float): float {...}{.raises: [], tags: [].}