private JsonElement GetJsonSource(JsonElement sourceJson, ListItemPropertyCreationInfo property)
        {
            if(IsDateFormText(property))
            {
                return sourceJson.GetProperty("FieldValuesAsText");
            }
            
            if(property.SharePointFieldType == SharePointFieldType.LookupValue)
            {
                return sourceJson.GetProperty(property.SharePointFieldName);
            }            

            return sourceJson;
        }
        private static string GetJsonFieldName(ListItemPropertyCreationInfo property)
        {
            string fieldName;
            switch(property.SharePointFieldType)
            {
                case SharePointFieldType.LookupId:                    
                    fieldName = $"{property.SharePointFieldName}Id";
                    break;
                case SharePointFieldType.LookupValue:
                    fieldName = (string)property.AdditionalData;
                    break;
                default:
                    fieldName = property.SharePointFieldName;
                    break;
            }

            return fieldName;
        }
 private bool IsDateFormText(ListItemPropertyCreationInfo propertyCreationInfo)
 {
     var isDateFromText = datesFromText && Type.GetTypeCode(propertyCreationInfo.PropertyToSet.PropertyType) == TypeCode.DateTime;
     return isDateFromText;
 }