toParams abstract method
Converts the model instance to a map of parameters for MongoDB operations.
The toParams method should be implemented by subclasses to define how the model is serialized into a map of key-value pairs suitable for database storage or updates.
The optional db
parameter can be passed to provide the database context if needed for serialization.
Returns a Future containing a Map of key-value pairs representing the model.
Implementation
Future<Map<String, Object?>> toParams({Db? db});