Issue with indexing UUPS events with `graph init --studio`

To update the abi in the subgraph.yaml file to the implementation ABI, follow these steps:

1. Open the subgraph.yaml file in a text editor.
2. Locate the dataSources section in the file.
3. Find the specific abi field that you want to update.
4. Replace the existing ABI with the implementation ABI.

Here is an example of how the updated subgraph.yaml file might look:

dataSources:
  - kind: ethereum/contract
    name: MyContract
    network: mainnet
    source:
      address: "0x123456789abcdef"
      abi: |
        [
          {
            "constant": true,
            "inputs": [],
            "name": "myFunction",
            "outputs": [
              {
                "name": "",
                "type": "uint256"
              }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
          }
        ]

Make sure to save the changes to the subgraph.yaml file after updating the abi.