onError abstract method Null safety

MobileAuthenticationClientInitializer onError(
  1. dynamic onError(
    1. InitializationError
    )
)

Specifies the object that will be invoked if building the MobileAuthenticationClient failed.

IMPORTANT
Providing the onError is required.

Params:

Returns: a MobileAuthenticationClientInitializer object.

Implementation

MobileAuthenticationClientInitializer onError(
  Function(InitializationError) onError,
);