How to get the type of T from a member of a generic class or method?

Question

Let say I have a generic member in a class or method, so:

public class Foo
{
    public List Bar { get; set; }

    public void Baz()
    {         


        

Answer 1

public bool IsCollection(T value){
  var valueType = value.GetType();
  return valueType.IsArray() || typeof(IEnumerable