acrees

// Base class for any object using mixins.
class Base {
    // Member function to include a mixin in this class.
    include(target, mixin, includeProperties?: bool) {
        for (var name in mixin) {
            if (!target.hasOwnProperty(name)) {
                if (typeof mixin[name] === "function" || includeProperties) {
                    target[name] = mixin[name];
                }
            }

acrees

#r "bin/Debug/System.Runtime.dll"
#r "bin/Debug/xunit.abstractions.dll"
#r "bin/Debug/xunit.assert.dll"
#r "bin/Debug/xunit.core.dll"
#r "bin/Debug/xunit.execution.dll"

open System
open System.IO
open System.Reflection
open Xunit.Sdk