Function setConflictHandler

setConflictHandler(input): void
Set a conflict handler that will be used to resolve conflicts that may emerge when matching events with synced messages.
Parameters
- input: InAppMessageConflictHandler
  The input object that holds the conflict handler to be used.
Returns void
Remark
The conflict handler is not persisted across app restarts and so must be set again before dispatching an event for any custom handling to take effect.

Throws
validation: InAppMessagingValidationErrorCode - Thrown when the provided parameters or library configuration is incorrect, or if In App messaging hasn't been initialized.

Example
```
// Sync messages before dispatching an event
await syncMessages();

// Example custom conflict handler
const myConflictHandler = (messages) => {
        // Return a random message
        const randomIndex = Math.floor(Math.random() * messages.length);
        return messages[randomIndex];
 };

// Set the conflict handler
setConflictHandler(myConflictHandler);

// Dispatch an event
await dispatchEvent({ name: 'test_event' });
```