_.mergeWith(object, sources, customizer)

_.at(object, [paths])

_.assignIn(object, [sources])

_.toPairsIn(object)

_.pick(object, [paths])

_.assignWith(object, sources, [customizer])

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

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

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

_.hasIn(object, path)