local Observable = require "rx.observable"

--- Returns an Observable that takes any values produced by the original that consist of multiple
-- return values and produces each value individually.
-- @returns {Observable}
function Observable:unwrap()
    return Observable.create(function(observer)
        local function onNext(...)
            local values = {...}
            for i = 1, #values do
                observer:onNext(values[i])
            end
        end

        local function onError(message)
            return observer:onError(message)
        end

        local function onCompleted()
            return observer:onCompleted()
        end

        return self:subscribe(onNext, onError, onCompleted)
    end)
end