find
Signature - source.ts#L1782
function find<T, S extends T>(
predicate: (value: T, index: number) => value is S,
): Operator<T, S>
function find<T>(
predicate: (value: T, index: number) => unknown,
): Operator<T, T>
function find<T, S extends T>(
predicate: (value: T, index: number) => value is S,
): Operator<T, S>
function find<T>(
predicate: (value: T, index: number) => unknown,
): Operator<T, T>