how to define "Upload" type

[lewatt23]

Hello everyone, please i have an issue defining the upload type, i doing what the doc says i.e https://graphql-compose.github.io/docs/guide/file-uploads.html#2-adding-graphqlupload-scalar-type-to-graphql-compose, but it doesn't work. here's my code

const mediaUploadByFile = MediaTC.mongooseResolvers
  .createOne()
  .wrap((newResolver) => {
    newResolver.cloneArg("record", "UploadByFileMediaInput");

    newResolver.getArgITC("record").addFields({
      file: {
        type: "Upload",
        description: "Upload by file, pass the file as arg here.",
      },
    });

    return newResolver;
  })
  .wrapResolve((next) => (rp) => {
    rp.beforeRecordMutate = async (
      doc: IMedia,
      resolveParams: ResolverResolveParams<
        IMedia,
        any,
        { record: IMedia & { file: GQLFileUpload } }
      >
    ) => {
      const record = resolveParams.args.record;

      const file = await record.file;
      console.log("file", file);

      // return createFile(doc, file);
    };

    return next(rp);
  });