Newtonsoft.Json.JsonValidatingReader.SchemaScope.GetRequiredProperties C# (CSharp) Method

            private IEnumerable<string> GetRequiredProperties(JsonSchemaModel schema)
            {
                if (schema == null || schema.Properties == null)
                {
                    return Enumerable.Empty<string>();
                }

                return schema.Properties.Where(p => p.Value.Required).Select(p => p.Key);
            }
        }