Quote delimit keys?

[ben-eb]

Hello, many thanks for this library! 👍

I have an issue where the interfaces generated are not valid typescript code due to containing special characters. For instance:

export interface ModuleList {
  mc?: string;
  mc.json?: Array<ModuleCode>;
}

This is not valid typescript code. Would it be possible to generate the following instead?

export interface ModuleList {
  mc?: string;
  "mc.json"?: Array<ModuleCode>;
}

I naively solved this by modifying the schema partial to always output quotes, then running the generated file through prettier afterwards, but it is quite the hack:

{{#each properties}}
  "{{@key}}"{{#unless (in? ../required @key)}}?{{/unless}}: {{> schema namespace=../namespace}};
{{/each}}

Thanks! 🙂