diff --git a/api_reference/javascript/CCIPLocalSimulatorFork.mdx b/api_reference/javascript/CCIPLocalSimulatorFork.mdx
index f27b0b1..dc8286b 100644
--- a/api_reference/javascript/CCIPLocalSimulatorFork.mdx
+++ b/api_reference/javascript/CCIPLocalSimulatorFork.mdx
@@ -12,7 +12,10 @@
   </dd>
   <dt>
     <a href="#getEvm2EvmMessage">getEvm2EvmMessage(receipt)</a> ⇒{' '}
-    <code>object</code> | <code>null</code>
+    <code>
+      <a href="#Evm2EvmMessage">Evm2EvmMessage</a>
+    </code>{' '}
+    | <code>null</code>
   </dt>
   <dd>
     <p>
@@ -33,6 +36,15 @@
   </dd>
 </dl>
 
+## Typedefs
+
+<dl>
+  <dt>
+    <a href="#Evm2EvmMessage">Evm2EvmMessage</a> : <code>Object</code>
+  </dt>
+  <dd></dd>
+</dl>
+
 <a name="requestLinkFromTheFaucet"></a>
 
 ## requestLinkFromTheFaucet(linkAddress, to, amount) ⇒ <code>Promise.&lt;string&gt;</code>
@@ -51,15 +63,16 @@ transaction hash of the fund transfer
 
 <a name="getEvm2EvmMessage"></a>
 
-## getEvm2EvmMessage(receipt) ⇒ <code>object</code> \| <code>null</code>
+## getEvm2EvmMessage(receipt) ⇒ [<code>Evm2EvmMessage</code>](#Evm2EvmMessage) \| <code>null</code>
 
 Parses a transaction receipt to extract the sent message Scans through
 transaction logs to find a `CCIPSendRequested` event and then decodes it to an
 object
 
 **Kind**: global function  
-**Returns**: <code>object</code> \| <code>null</code> - Returns either the sent
-message or null if provided receipt does not contain `CCIPSendRequested` log
+**Returns**: [<code>Evm2EvmMessage</code>](#Evm2EvmMessage) \|
+<code>null</code> - Returns either the sent message or null if provided receipt
+does not contain `CCIPSendRequested` log
 
 | Param   | Type                | Description                                      |
 | ------- | ------------------- | ------------------------------------------------ |
@@ -80,7 +93,30 @@ if the message is successfully routed, or reverts
 - <code>Error</code> Fails if no off-ramp matches the message's source chain
   selector or if calling `router.getOffRamps()`
 
-| Param          | Type                | Description                       |
-| -------------- | ------------------- | --------------------------------- |
-| routerAddress  | <code>string</code> | Address of the destination Router |
-| evm2EvmMessage | <code>object</code> | Sent cross-chain message          |
+| Param          | Type                                           | Description                       |
+| -------------- | ---------------------------------------------- | --------------------------------- |
+| routerAddress  | <code>string</code>                            | Address of the destination Router |
+| evm2EvmMessage | [<code>Evm2EvmMessage</code>](#Evm2EvmMessage) | Sent cross-chain message          |
+
+<a name="Evm2EvmMessage"></a>
+
+## Evm2EvmMessage : <code>Object</code>
+
+**Kind**: global typedef  
+**Properties**
+
+| Name                | Type                                                        |
+| ------------------- | ----------------------------------------------------------- |
+| sourceChainSelector | <code>bigint</code>                                         |
+| sender              | <code>string</code>                                         |
+| receiver            | <code>string</code>                                         |
+| sequenceNumber      | <code>bigint</code>                                         |
+| gasLimit            | <code>bigint</code>                                         |
+| strict              | <code>boolean</code>                                        |
+| nonce               | <code>bigint</code>                                         |
+| feeToken            | <code>string</code>                                         |
+| feeTokenAmount      | <code>bigint</code>                                         |
+| data                | <code>string</code>                                         |
+| tokenAmounts        | <code>Array.&lt;\{token: string, amount: bigint}&gt;</code> |
+| sourceTokenData     | <code>Array.&lt;string&gt;</code>                           |
+| messageId           | <code>string</code>                                         |
diff --git a/helper_doc/generate-jsdoc.ts b/helper_doc/generate-jsdoc.ts
index 6e09970..dee7414 100644
--- a/helper_doc/generate-jsdoc.ts
+++ b/helper_doc/generate-jsdoc.ts
@@ -1,11 +1,11 @@
-import fs from "fs-extra";
-import path from "path";
-import jsdoc2md from "jsdoc-to-markdown";
+import fs from 'fs-extra';
+import path from 'path';
+import jsdoc2md from 'jsdoc-to-markdown';
 
-const MDX_EXTENSION = ".mdx";
-const outputDir = path.join(process.cwd(), "api_reference/javascript");
+const MDX_EXTENSION = '.mdx';
+const outputDir = path.join(process.cwd(), 'api_reference/javascript');
 
-const jsFiles = ["scripts/CCIPLocalSimulatorFork.js"];
+const jsFiles = ['scripts/CCIPLocalSimulatorFork.js'];
 
 const generateMarkdownDocs = async (
   files: string[],
@@ -21,10 +21,11 @@ const generateMarkdownDocs = async (
       `${fileName}${MDX_EXTENSION}`
     );
     const markdown = await jsdoc2md.render({ files: absoluteFilePath });
-    await fs.outputFile(outputPath, markdown);
+    const fixedMarkdown = markdown.replace(/&lt;\{/g, '&lt;\\{');
+    await fs.outputFile(outputPath, fixedMarkdown);
   }
 };
 
 generateMarkdownDocs(jsFiles, outputDir)
-  .then(() => console.log("Markdown documentation generated successfully."))
-  .catch((err) => console.error(err));
+  .then(() => console.log('Markdown documentation generated successfully.'))
+  .catch(err => console.error(err));
diff --git a/scripts/CCIPLocalSimulatorFork.js b/scripts/CCIPLocalSimulatorFork.js
index 250f3cc..6a58409 100644
--- a/scripts/CCIPLocalSimulatorFork.js
+++ b/scripts/CCIPLocalSimulatorFork.js
@@ -24,12 +24,29 @@ async function requestLinkFromTheFaucet(linkAddress, to, amount) {
     return tx.hash;
 }
 
+/**
+ * @typedef {Object} Evm2EvmMessage
+ * @property {bigint} sourceChainSelector
+ * @property {string} sender
+ * @property {string} receiver
+ * @property {bigint} sequenceNumber
+ * @property {bigint} gasLimit
+ * @property {boolean} strict
+ * @property {bigint} nonce
+ * @property {string} feeToken
+ * @property {bigint} feeTokenAmount
+ * @property {string} data
+ * @property {Array<{token: string, amount: bigint}>} tokenAmounts
+ * @property {Array<string>} sourceTokenData
+ * @property {string} messageId
+ */
+
 /**
  * Parses a transaction receipt to extract the sent message
  * Scans through transaction logs to find a `CCIPSendRequested` event and then decodes it to an object
  *
  * @param {object} receipt - The transaction receipt from the `ccipSend` call
- * @returns {object | null} Returns either the sent message or null if provided receipt does not contain `CCIPSendRequested` log
+ * @returns {Evm2EvmMessage | null} Returns either the sent message or null if provided receipt does not contain `CCIPSendRequested` log
  */
 function getEvm2EvmMessage(receipt) {
     const evm2EvmOnRampInterface = new ethers.Interface(EVM2EVMOnRampAbi);
@@ -87,7 +104,7 @@ function getEvm2EvmMessage(receipt) {
  * Routes the sent message from the source network on the destination (current) network
  *
  * @param {string} routerAddress - Address of the destination Router
- * @param {object} evm2EvmMessage - Sent cross-chain message
+ * @param {Evm2EvmMessage} evm2EvmMessage - Sent cross-chain message
  * @returns {Promise<void>} Either resolves with no value if the message is successfully routed, or reverts
  * @throws {Error} Fails if no off-ramp matches the message's source chain selector or if calling `router.getOffRamps()`
  */