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shrine-medco/shrine-webclient/src/main/html/node_modules/wrappy/wrappy.js
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wrappy.js
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			// Returns a wrapper function that returns a wrapped callback
			// The wrapper function should do some stuff, and return a
			// presumably different callback function.
			// This makes sure that own properties are retained, so that
			// decorations and such are not lost along the way.
			module.exports = wrappy
			function wrappy (fn, cb) {
			if (fn && cb) return wrappy(fn)(cb)

			if (typeof fn !== 'function')
			throw new TypeError('need wrapper function')

			Object.keys(fn).forEach(function (k) {
			wrapper[k] = fn[k]
			})

			return wrapper

			function wrapper() {
			var args = new Array(arguments.length)
			for (var i = 0; i < args.length; i++) {
			args[i] = arguments[i]
			}
			var ret = fn.apply(this, args)
			var cb = args[args.length-1]
			if (typeof ret === 'function' && ret !== cb) {
			Object.keys(cb).forEach(function (k) {
			ret[k] = cb[k]
			})
			}
			return ret
			}
			}