FindAppliedRouteFilter finds the first instance of the filterType supplied in the Rule being processed.

FindAppliedRouteFilters finds all instances of the supplied filterTypes for the Rule supplied in the RouteContext.

FindExtensionRefFilters returns a list ExtensionRef filters that references the supplied GroupKind in the Rule being processed.

GetExtensionRefObj uses the provided query engine to retrieve an ExtensionRef object and return the object of the same type as the type parameter.

GetPrioritizedListenerPolicies accepts a slice of Gateway-attached policies (that may explicitly target a specific Listener and returns a slice of these policies (or a subset) resources.

SortByCreationTime accepts a slice of client.Object instances and sorts it by creation timestamp in ascending order.

TODO: remove this as part of https://github.com/solo-io/solo-projects/issues/6286.

PolicyWithSectionedTargetRefs is a wrapper type to represent policy objects that attach via TargetRefWtihSectionName.