NotNullAttribute
Indicates that the value of the marked element could never be null.
using System;
namespace NJsonSchema.Annotations
{
[AttributeUsage(AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Parameter | AttributeTargets.Delegate | AttributeTargets.ReturnValue)]
public class NotNullAttribute : Attribute
{
}
}