docs: add opaqueDataToDepositData page (#2616)

Author: 0xArdy

site/pages/op-stack/utilities/opaqueDataToDepositData.md

@@ -0,0 +1,51 @@
+---
+description: Converts opaque data into a structured deposit data format.
+---
+
+# opaqueDataToDepositData
+
+Converts an opaque data into a structured deposit data object. This includes extracting and converting the `mint`, `value`, `gas`, `isCreation` flag, and `data` from a hex string.
+
+## Import
+
+```ts
+import { opaqueDataToDepositData } from "viem";
+```
+
+## Usage
+
+```ts
+import { opaqueDataToDepositData } from "viem";
+
+const opaqueData =
+  "0x00000000000000000000000000000000000000000000000000470DE4DF82000000000000000000000000000000000000000000000000000000470DE4DF82000000000000000186A00001";
+
+const depositData = opaqueDataToDepositData(opaqueData);
+// {
+//   mint: 20000000000000000n,
+//   value: 20000000000000000n,
+//   gas: 100000n,
+//   isCreation: false,
+//   data: '0x01',
+// }
+```
+
+## Returns
+
+`OpaqueDataToDepositDataReturnType`
+
+An object containing the parsed deposit data.
+
+## Parameters
+
+### opaqueData
+
+- **Type:** `Hex`
+
+The opaque hex-encoded data.
+
+## Errors
+
+`OpaqueDataToDepositDataErrorType`
+
+An error type that includes potential slice, size, and generic errors encountered during the parsing process.