Contract compilation issue

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Getting the following error trying to compile the contract with

TAQ_LIGO_IMAGE=ligolang/ligo:1.1.0 taq compile nft.jsligo

```
=== Error messages for nft.jsligo ===
[
{
"status": "error",
"stage": "typer",
"content": {
"message": "Type \"ret\" declared in signature but not found.",
"location": [
"File",
{
"start": {
"byte": {
"pos_fname": "/Users/soylentextra/Documents/repos/smart-contracts/nft-marketplace/.ligo/source/i/ligo__s__fa__1.0.9__ffffffff/lib/fa2/nft/nft.impl.jsligo",
"pos_lnum": 11,
"pos_bol": 0,
"pos_cnum": 7
},
"point_num": 1453,
"point_bol": 1446
},
"stop": {
"byte": {
"pos_fname": "/Users/soylentextra/Documents/repos/smart-contracts/nft-marketplace/.ligo/source/i/ligo__s__fa__1.0.9__ffffffff/lib/fa2/nft/nft.impl.jsligo",
"pos_lnum": 239,
"pos_bol": 0,
"pos_cnum": 1
},
"point_num": 9212,
"point_bol": 9211
}
}
]
}
}
]

===
┌────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Source │ Artifact │
├────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ nft.jsligo │ No contract modules found in "nft.jsligo". │
│ │ If your contract is defined within a namespace, please ensure that it is exported from the contract file." │
└────────────┴────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
```

Start by reproducing the issue with `TAQ_LIGO_IMAGE=ligolang/ligo:1.1.0 taq compile nft.jsligo` and inspect the reported `nft.impl.jsligo` location under `.ligo/source`. Trace why the `ret` type in the signature is not found and why no contract module is detected; done means the contract compiles and the module is recognized.

Written by the indexing model from the issue text.