func InitProjectorsRegistry(db *gorm.DB) ProjectorRegistry {
	clusterListProjector := NewProjector("cluster_list", db)
	clusterListProjector.AddHandler(ClusterDiscovery, ClusterListHandler)
	return ProjectorRegistry{
		clusterListProjector,
	}
}
InitInitProjectorsRegistry initialize the ProjectorRegistry
package datapipeline
import "gorm.io/gorm"
type ProjectorRegistry []Projector