Fix return types in utils.js

Author: aron

Diff for: lib/util.js

@@ -232,7 +232,7 @@ async function withAutomaticRetries(request, options = {}) {
  * @param {Replicate} client - The client used to upload the file
  * @param {object} inputs - The inputs to transform
  * @param {"default" | "upload" | "data-uri"} strategy - Whether to upload files to Replicate, encode as dataURIs or try both.
- * @returns {object} - The transformed inputs
+ * @returns {Promise<object>} - The transformed inputs
  * @throws {ApiError} If the request to upload the file fails
  */
 async function transformFileInputs(client, inputs, strategy) {
@@ -265,7 +265,7 @@ async function transformFileInputs(client, inputs, strategy) {
  *
  * @param {Replicate} client - The client used to upload the file
  * @param {object} inputs - The inputs to transform
- * @returns {object} - The transformed inputs
+ * @returns {Promise<object>} - The transformed inputs
  * @throws {ApiError} If the request to upload the file fails
  */
 async function transformFileInputsToReplicateFileURLs(client, inputs) {
@@ -286,8 +286,8 @@ const MAX_DATA_URI_SIZE = 10_000_000;
  * base64-encoded data URI.
  *
  * @param {object} inputs - The inputs to transform
- * @returns {object} - The transformed inputs
- * @throws {Error} If the size of inputs exceeds a given threshould set by MAX_DATA_URI_SIZE
+ * @returns {Promise<object>} - The transformed inputs
+ * @throws {Error} If the size of inputs exceeds a given threshold set by MAX_DATA_URI_SIZE
  */
 async function transformFileInputsToBase64EncodedDataURIs(inputs) {
   let totalBytes = 0;
@@ -296,10 +296,10 @@ async function transformFileInputsToBase64EncodedDataURIs(inputs) {
     let mime;
 
     if (value instanceof Blob) {
-      // Currently we use a NodeJS only API for base64 encoding, as
+      // Currently, we use a NodeJS only API for base64 encoding, as
       // we move to support the browser we could support either using
       // btoa (which does string encoding), the FileReader API or
-      // a JavaScript implenentation like base64-js.
+      // a JavaScript implementation like base64-js.
       // See: https://developer.mozilla.org/en-US/docs/Glossary/Base64
       // See: https://github.com/beatgammit/base64-js
       buffer = await value.arrayBuffer();