/// <summary>
/// Visit a JSON member.
/// </summary>
/// <param name="jsonMember">The JSON member to visit.</param>
/// <returns>The type that was visited.</returns>
protected override string VisitMember(JsonMember jsonMember)
{
return $"\"{jsonMember.Name}\":{Visit(jsonMember.Value)}";
}
/// <summary>
/// Returns a value indicating whether the JSON Member has a non-null value.
/// </summary>
/// <param name="jsonMember">The JSON member to test.</param>
/// <returns>true if the JSON member has a non-null value, false if not.</returns>
static bool IsNotNull(JsonMember jsonMember)
{
return jsonMember.Value.GetType() != typeof(JsonNull);
}