fix: allow setting properties to null

.gitignore

@@ -354,3 +354,5 @@ MigrationBackup/
 
 # Rider
 .idea/
+
+.DS_Store

Src/Notion.Client/Models/PropertyValue/EmailPropertyValue.cs

@@ -12,7 +12,7 @@ public class EmailPropertyValue : PropertyValue
         /// <summary>
         ///     Describes an email address.
         /// </summary>
-        [JsonProperty("email")]
+        [JsonProperty("email", NullValueHandling = NullValueHandling.Include)]
         public string Email { get; set; }
     }
 }

Src/Notion.Client/Models/PropertyValue/NumberPropertyValue.cs

@@ -12,7 +12,7 @@ public class NumberPropertyValue : PropertyValue
         /// <summary>
         ///     Value of number
         /// </summary>
-        [JsonProperty("number")]
+        [JsonProperty("number", NullValueHandling = NullValueHandling.Include)]
         public double? Number { get; set; }
     }
 }

Src/Notion.Client/Models/PropertyValue/PhoneNumberPropertyValue.cs

@@ -12,7 +12,7 @@ public class PhoneNumberPropertyValue : PropertyValue
         /// <summary>
         ///     Phone number value
         /// </summary>
-        [JsonProperty("phone_number")]
+        [JsonProperty("phone_number", NullValueHandling = NullValueHandling.Include)]
         public string PhoneNumber { get; set; }
     }
 }

Src/Notion.Client/Models/PropertyValue/StatusPropertyValue.cs

@@ -47,7 +47,7 @@ public enum StatusColor
 
         public override PropertyValueType Type => PropertyValueType.Status;
 
-        [JsonProperty("status")]
+        [JsonProperty("status", NullValueHandling = NullValueHandling.Include)]
         public Data Status { get; set; }
 
         public class Data

Src/Notion.Client/Models/PropertyValue/UrlPropertyValue.cs

@@ -12,7 +12,7 @@ public class UrlPropertyValue : PropertyValue
         /// <summary>
         ///     Describes a web address
         /// </summary>
-        [JsonProperty("url")]
+        [JsonProperty("url", NullValueHandling = NullValueHandling.Include)]
         public string Url { get; set; }
     }
 }