如何在fp-ts中将Either<Error、Task<any>>转换为TaskEither<Error、any>

import { pipe } from 'fp-ts/lib/function';
import { TaskEither, tryCatch, fromEither } from 'fp-ts/lib/TaskEither';
import { Either, left } from 'fp-ts/lib/Either';
import { Task } from 'fp-ts/lib/Task';

function convertEitherToTaskEither<E, A>(either: Either<E, Task<A>>): TaskEither<E, A> {
  return pipe(
    either,
    either.fold(
      (error) => tryCatch(() => Promise.reject(error), left),
      (task) => fromEither(task())
    )
  );
}

const either: Either<Error, Task<number>> = // 从某个地方获取 Either<Error, Task<number>> 的值

const taskEither: TaskEither<Error, number> = convertEitherToTaskEither(either);

taskEither()
  .then((result) => {
    // 处理结果
  })
  .catch((error) => {
    // 处理错误
  });