Did you know you can import only parts of a module? Found this in the Swiftz sample codes:

#!swift
let xs = [1, 2, 0, 3, 4]

import protocol Swiftz.Semigroup
import func Swiftz.sconcat
import struct Swiftz.Min

//: The least element of a list can be had with the Min Semigroup.
let smallestElement = sconcat(Min(2), t: xs.map { Min($0) }).value() // 0

import protocol or even import func were very new to me. Handy!