NuGet.ProjectManager.GetPackageTargetFramework C# (CSharp) Method

        private FrameworkName GetPackageTargetFramework(string packageId)
        {
            if (_packageReferenceRepository != null)
            {
                return _packageReferenceRepository.GetPackageTargetFramework(packageId) ?? Project.TargetFramework;
            }

            return Project.TargetFramework;
        }