+ Fixed issue where IDs of different models were colliding
+ Used built in methods to convert u64 to bytes
+ Added tests for database speed
+ Converted return time of filter to an iterator
+ Added better error handling for non-unique values
+ Fixed issue where IDs of different models were colliding
+ Used built in methods to convert u64 to bytes
+ Added tests for database speed
+ Converted return time of filter to an iterator
+ Added better error handling for non-unique values