Uniswap plugin has ambiguous parameters

[nabeelraza-7]

Describe the bug
When using the uniswap plugin, the parameters tokenIn and tokenOut are assumed to be strings but the API request requires them to be addresses

To Reproduce
Sample parameters:

{
  tokenIn: 'WETH',
  tokenOut: 'WBTC',
  amount: '1',
  type: 'EXACT_INPUT',
  protocols: [ 'V2', 'V3' ],
  routingPreference: 'CLASSIC'
}

Error:

{
  "errorCode": "RequestValidationError",
  "detail": "\"tokenIn\" with value \"WETH\" fails to match the required pattern: /^0x[a-fA-F0-9]{40}$/"
}

Expected behavior
There should be some preprocessing that converts this appropriately OR looks up their addresses