_.keysIn(object) source

_.mergeWith(object, sources, customizer)

_.pick(object, [paths])

_.assignIn(object, [sources])

_.forOwn(object, [iteratee=_.identity])

_.at(object, [paths])

_.toPairsIn(object)

_.updateWith(object, path, updater, [customizer])

_.hasIn(object, path)

_.omitBy(object, [predicate=_.identity])