}
pub type TargetMachineFactoryFn<B> = Arc<
- dyn Fn(TargetMachineFactoryConfig) -> Result<<B as WriteBackendMethods>::TargetMachine, String>
- + Send
+ dyn Fn(
+ TargetMachineFactoryConfig,
+ ) -> Result<
+ <B as WriteBackendMethods>::TargetMachine,
+ <B as WriteBackendMethods>::TargetMachineError,
+ > + Send
+ Sync,
>;