How to use react-native-obfuscating-transformer with multiple transformers/resolvers

I'm trying to add multiple resolvers and transformers using metro for my react native project, how do I combine them and obfuscate the code.

I am using metro-babel-transformer and react-native-svg-transformer

```
var upstreamTransformer = require("metro-babel-transformer");
var svgTransformer = require("react-native-svg-transformer");

module.exports.transform = function({ src, filename, options }) {
if (filename.endsWith(".svg")) {
return svgTransformer.transform({ src, filename, options });
} else {
return upstreamTransformer.transform({ src, filename, options });
}
};
```

My transformer.js look like this

Start with the transformer.js example in the issue and review how metro-babel-transformer and react-native-svg-transformer are invoked. Determine what documented configuration is needed to combine these transformers with obfuscation, then verify the resulting usage against the repository's existing documentation or examples.

Written by the indexing model from the issue text.