type PolicyProvider interface {
	// VerifyNeeded determines if the given reference needs verification
	VerifyNeeded(ctx context.Context, subjectReference common.Reference, referenceDesc ocispecs.ReferenceDescriptor) bool
	// ContinueVerifyOnFailure determines if the given error can be ignored and verification can be continued.
	ContinueVerifyOnFailure(ctx context.Context, subjectReference common.Reference, referenceDesc ocispecs.ReferenceDescriptor, partialVerifyResult types.VerifyResult) bool
	// ErrorToVerifyResult converts an error to a properly formatted verify result
	ErrorToVerifyResult(ctx context.Context, subjectRefString string, verifyError error) types.VerifyResult
	// OverallVerifyResult determines the final outcome of verification that is constructed using the results from
	// individual verifications
	OverallVerifyResult(ctx context.Context, verifierReports []interface{}) bool
	// GetPolicyType returns the type of the policy.
	GetPolicyType(ctx context.Context) string
}