scaffold subgraph generation failing for contracts using 2D arrays as event params #1878

✖ Failed to create subgraph scaffold: ',' expected. (3:26)
  1 |
  2 |   import { assert, describe, test, clearStore, beforeAll, afterAll } from "matchstick-as/assembly/index"
> 3 |   import { Address, Array<BigInt, BigInt } from "@graphprotocol/graph-ts"
    |                          ^
  4 |   import { Exchange } from "../generated/schema"
  5 |   import { Exchange as ExchangeEvent } from "../generated/CurveRouter/CurveRouter"
  6 |   import { handleExchange } from "../src/curve-router"
    SyntaxError: ',' expected. (3:26)
      1 |
      2 |   import { assert, describe, test, clearStore, beforeAll, afterAll }
     from "matchstick-as/assembly/index"
    > 3 |   import { Address, Array<BigInt, BigInt } from 
    "@graphprotocol/graph-ts"
        |                          ^
      4 |   import { Exchange } from "../generated/schema"
      5 |   import { Exchange as ExchangeEvent } from 
    "../generated/CurveRouter/CurveRouter"
      6 |   import { handleExchange } from "../src/curve-router"
      ```

### Expected behavior

Expect to get scaffold subgraph code but getting `✖ Failed to create subgraph scaffold`

### Screenshots or Videos

_No response_

### Platform

- OS: [e.g. macOS, Windows, Linux]
- NodeJS: [e.g. 18.5.0]
- `@graphprotocol/*` version(s): [e.g. 2.6.2]


### Subgraph Manifest

_No response_

### Subgraph GraphQL Schema

_No response_

### Additional context

_No response_