Searches the given object by the given predicate and returns the found entry or undefined.

<T>(predicate: (value: T, key: string, context: GenericObject<T>) => boolean) => (xs: GenericObject<T>) => [string, T] | undefined

findEntry(({ x }) => x % 2 === 0)({
  a: { x: 1 },
  b: { x: 2 },
  c: { x: 3 },
});
// ⇒ ["b", { x: 2 }]

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