Loads the capture JSON data from the data source.
This method must be overridden by subclasses. The base implementation will crash if called.
- Returns: The JSON data as Data, or nil if loading fails
- Important: Subclasses must override this method. Do not call the base implementation.
Loads the capture JSON data from the data source.
This method must be overridden by subclasses. The base implementation will crash if called.
- Returns: The JSON data as
Data, ornilif loading fails- Important: Subclasses must override this method. Do not call the base implementation.