CallHandler: Doesn't work for function with tuple[][] arguments

Do you want to request a feature or report a bug?
bug
What is the current behavior?
Failed to generate types for contract ABIs: Failed to generate types for contract ABI: Conversion from 'ethereum' to 'AssemblyScript' for source type 'tuple[][]' is not supported
If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem.

{
			"inputs": [
				{
					"internalType": "bytes32[]",
					"name": "accounts",
					"type": "bytes32[]"
				},
				{
					"components": [
						{
							"internalType": "enum ResourceData.ResourceType",
							"name": "resourceType",
							"type": "uint8"
						},
						{
							"internalType": "uint256[]",
							"name": "amounts",
							"type": "uint256[]"
						}
					],
					"internalType": "struct ResourceData.AmountPayload[][]",
					"name": "payloads",
					"type": "tuple[][]"
				}
			],
			"name": "registerAndDripMult",
			"outputs": [],
			"stateMutability": "nonpayable",
			"type": "function"
		}

run graph codegen with this abi
What is the expected behavior?
should support tuple[][]

Start by running graph codegen with the ABI shown in the issue and reproduce the failure for the tuple[][] argument. Trace the ABI type conversion entry point that reports the unsupported conversion, then verify that code generation succeeds for nested tuple arrays without regressing the existing ABI cases.