How to use the @authx/authx.Credential.read function in @authx/authx

return args.credentials.map(async input => {
      // Validate `id`.
      if (!validateIdFormat(input.id)) {
        throw new ValidationError("The provided `id` is an invalid ID.");
      }

      const tx = await pool.connect();
      try {
        await tx.query("BEGIN DEFERRABLE");

        const before = await Credential.read(tx, input.id, credentialMap, {
          forUpdate: true
        });

        if (!(before instanceof EmailCredential)) {
          throw new NotFoundError("No email credential exists with this ID.");
        }

        if (!(await before.isAccessibleBy(realm, a, tx, "write.basic"))) {
          throw new ForbiddenError(
            "You do not have permission to update this credential."
          );
        }

        const credential = await EmailCredential.write(
          tx,
          {

return args.credentials.map(async input => {
      // Validate `id`.
      if (!validateIdFormat(input.id)) {
        throw new ValidationError("The provided `id` is an invalid ID.");
      }

      const tx = await pool.connect();
      try {
        await tx.query("BEGIN DEFERRABLE");

        const before = await Credential.read(tx, input.id, credentialMap, {
          forUpdate: true
        });

        if (!(before instanceof PasswordCredential)) {
          throw new NotFoundError(
            "The authority uses a strategy other than password."
          );
        }

        if (!(await before.isAccessibleBy(realm, a, tx, "write.basic"))) {
          throw new ForbiddenError(
            "You do not have permission to update this credential."
          );
        }

        if (

return args.credentials.map(async input => {
      // Validate `id`.
      if (!validateIdFormat(input.id)) {
        throw new ValidationError("The provided `id` is an invalid ID.");
      }

      const tx = await pool.connect();
      try {
        await tx.query("BEGIN DEFERRABLE");

        const before = await Credential.read(tx, input.id, credentialMap, {
          forUpdate: true
        });

        if (!(before instanceof OpenIdCredential)) {
          throw new NotFoundError("No openid credential exists with this ID.");
        }

        if (!(await before.isAccessibleBy(realm, a, tx, "write.basic"))) {
          throw new ForbiddenError(
            "You do not have permission to update this credential."
          );
        }

        const credential = await OpenIdCredential.write(
          tx,
          {