We define a standard data structure :mod:`FLModel<nvflare.app_common.abstract.FLModel>` that captures the common attributes needed for exchanging learning results.
This is particularly useful when NVFlare system needs to exchange learning information with external training scripts/systems.
The external training script/system only need to extract the required information from received FLModel, run local training, and put the results in a new FLModel to be sent back.
For a detailed explanation of each attributes, please refer to the API doc: :mod:`FLModel<nvflare.app_common.abstract.FLModel>`