//global.d.ts
type ConfigMeta = StringConfig | NumberConfig

declare interface Config<T> {
  name: string
  value: T
}

interface StringConfig extends Config<String> {
  type: "string"
}

interface NumberConfig extends Config<Number> {
  type: "number"
}

interface MetaData {
  name: string,
  config: ConfigMeta[]
}

declare function registerPlugin(meta: MetaData, callback: (config: Record<string, any>) => void): void



//script.ts
registerPlugin({
  name: "some plugin",
  config: [{
    type: "string",
    name: "foo",
    value: "asdf"
  }, {
    type: "number",
    name: "bar",
    value: 123
  }]
}, (config) => {
  //the issue here, config is declared as Record<string, any>
  //however is it possible to extract type information from above config input
  //and get the correct key and associated types directly assigned?
  console.log(config) //gives { foo: "asdf", bar: 123 }
})