/// <summary>
/// Load assembly defined by give assembly key into application domain.
/// </summary>
/// <param name="assemblyKey">Key used for loading assembly.</param>
/// <returns>AssemblyProvider.</returns>
public AssemblyProvider LoadRoot(object assemblyKey)
{
var loadedAssembly = CreateOrGetAssembly(assemblyKey);
if (loadedAssembly != null)
{
_manager.LoadRoot(loadedAssembly);
}
return(loadedAssembly);
}