在TypeScript中使用Ramda curry +占位符会导致“类型'占位符'无法分配给类型'x'

Question

我想将已知参数绑定到Ramda的回调中，其余的未指定：

import * as R from "ramda";

type Params = Partial<{
  param1: number;
  param2: number;
  param3: number;
}>;

function getBoundCallback(params: Params) {
  const { param1, param2, param3 } = params;

  const callback = (p1: number, p2: number, p3: number) => {
    // do something
  };

  return R.curry(callback)(
    param1 || R.__, 
    param2 || R.__, 
    param3 || R.__
  );
}

但是我得到了

TS2769: No overload matches this call.
  The last overload gave the following error.
    Argument of type 'number | Placeholder' is not assignable to parameter of type 'number'.
      Type 'Placeholder' is not assignable to type 'number'

正确的方法是什么？

我唯一想到的解决方案是：

const callback = (
    _p1: number | R.Placeholder,
    _p2: number | R.Placeholder,
    _p3: number | R.Placeholder
  ) => {
    const p1 = _p1 as number;
    const p2 = _p2 as number;
    const p3 = _p3 as number;

    // do something
  };

这远非最佳。

正确的方法是什么？

我将"types/npm-ramda#dist"用于Ramda类型声明。