Method of modifying input type to account for acceptable invalid inputs about valibot HOT 6 CLOSED

import * as v from 'valibot';

const Schema1 = v.picklist(['foo', 'bar']);
const Schema2 = v.pipe(v.nullable(Schema1), Schema1);

type Input = v.InferInput<typeof Schema2>; // 'foo' | 'bar' | null
type Output = v.InferOutput<typeof Schema2>; // 'foo' | 'bar'

import type { BaseSchema, Input, Output } from "valibot";

/**
 * Input schema type.
 */
export type InputSchema<
  TInput,
  TWrapped extends BaseSchema,
  TOutput = Output<TWrapped>,
> = BaseSchema<Input<TWrapped> | TInput, TOutput> & {
  /**
   * The schema type.
   */
  type: "input";
  /**
   * The wrapped schema.
   */
  wrapped: TWrapped;
};

/**
 * Creates a curried type-variant input schema function.
 *
 * @template TInput The type to be appended to the input type of the wrapped schema.
 *
 * @returns A curried function that creates a custom type-variant input schema.
 */
export const createInput = <TInput>() => {
  return <TWrapped extends BaseSchema>(
    wrapped: TWrapped,
  ): InputSchema<TInput, TWrapped> => {
    return {
      type: "input",
      expects: wrapped.expects,
      async: false,
      wrapped,
      _parse(input: unknown, config) {
        return this.wrapped._parse(input, config);
      },
    };
  };
};

const nullableInput = createInput<null>();

const RepeatSchema = nullableInput(v.picklist(['daily', 'weekly', 'monthly']));

type RepeatInput = v.Input<typeof RepeatSchema>; // "daily" | "weekly" | "monthly" | null
type RepeatOutput = v.Output<typeof RepeatSchema>; // "daily" | "weekly" | "monthly"

const RepeatSchema = createInput<null>()(v.picklist(['daily', 'weekly', 'monthly']));

type RepeatInput = v.Input<typeof RepeatSchema>; // "daily" | "weekly" | "monthly" | null
type RepeatOutput = v.Output<typeof RepeatSchema>; // "daily" | "weekly" | "monthly"