Add parseJsonKeys references

src/SUMMARY.md

@@ -281,6 +281,7 @@
       - [`envBytes`](./cheatcodes/env-bytes.md)
       - [`parseJson`](./cheatcodes/parse-json.md)
       - [`keyExists`](./cheatcodes/key-exists.md)
+      - [`parseJsonKeys`](./cheatcodes/parse-json-keys.md)
       - [`serializeJson`](./cheatcodes/serialize-json.md)
       - [`writeJson`](./cheatcodes/write-json.md)
     - [Utilities](./cheatcodes/utilities.md)

src/cheatcodes/README.md

@@ -323,6 +323,8 @@ interface CheatCodes {
     function parseJson(string memory json) external returns (bytes memory);
     // Check if a key exists in a json string
     function keyExists(string memory json, string memory key) external returns (bytes memory);
+    // Get list of keys in a json string
+    function parseJsonKeys(string memory json, string memry key) external returns (string[] memory);
 
     // Snapshot the current state of the evm.
     // Returns the id of the snapshot that was created.

src/cheatcodes/parse-json-keys.md

@@ -0,0 +1,29 @@
+## `parseJsonKeys`
+
+### Signature
+
+```solidity
+// Get list of keys present in a JSON string
+function parseJsonKeys(string calldata json, string calldata key) external pure returns (string[] memory keys);
+```
+
+### Description
+
+Gets list of keys present in a JSON string
+
+### Examples
+
+```solidity
+string memory json = '{"key": {"a": 1, "b": 2}}';
+string[] memory keys = vm.parseJsonKeys(json, ".key"); // ["a", "b"]
+```
+
+```solidity
+string memory json = '{"key": "something"}';
+string[] memory keys = vm.parseJsonKeys(json, "."); // ["key"]
+```
+
+```solidity
+string memory json = '{"root_key": [{"a": 1, "b": 2}]}';
+string[] memory keys = vm.parseJsonKeys(json, ".root_key.0"); // ["a", "b"]
+```