@data-client/rest/ts4.1/utiltypes.d.ts

Quickly define typed REST resources and endpoints

/** Extracts only the keys that will be required
 *
 * Removes optional, as well as unbounded (aka 'string')
 *
 * @example
 ```
RequiredKeys<{
  opt?: string;
  bob: string;
  alice: number;
  [k: string]: string | number | undefined;
}> // = 'bob' | 'alice'
 ```
 */
export type RequiredKeys<T> = Values<OnlyRequired<T>>;
type OnlyRequired<T> = {
    [K in keyof T as string extends K ? never : K]-?: {} extends Pick<T, K> ? never : K;
};
type Values<T> = T[Exclude<keyof T, number>];
export {};
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