code: func (m *MultiLog) EmitAuditEvent(event Event, fields EventFields) error {
  	var errors []error
  	for _, log := range m.loggers {
  		errors = append(errors, log.EmitAuditEvent(event, fields))
  	}
  	return trace.NewAggregate(errors...)
  }
docs: // EmitAuditEvent emits audit event