Package provider provides config provider implementations that can be used in the adapters, as well as the Options type containing options for various aspects of an adapter.

ErrViper returns a MeshKit error indicating an (initialization) error in the in-memory provider.

ErrViper returns a MeshKit error indicating an (initialization) error in the Viper provider.

ErrEmptyConfig is returned when the config has not been initialized.

Interface Handler is the interface to be implemented by config providers used by adapters.