return func(i echo.Instance) bool {
		return p.IsTargetSupported(i)
	}
}

func (p *providerImpl) Check(opts echo.CallOptions, expectAllowed bool) echo.Checker {
	return p.check(opts, expectAllowed)
}

func checkHTTP(opts echo.CallOptions, expectAllowed bool) echo.Checker {
	override := opts.HTTP.Headers.Get(XExtAuthzAdditionalHeaderOverride)
	var hType echoClient.HeaderType
	if expectAllowed {
		hType = echoClient.RequestHeader

				// HTTP protocol doesn't support raw TCP requests.
				return !p.IsTCP()
			},
			targetSupported: func(to echo.Target) bool {
				return to.Config().IncludeExtAuthz
			},
			check: checkHTTP,
		},
		&providerImpl{
			name: server.grpcName(),
			api:  GRPC,
			protocolSupported: func(protocol.Instance) bool {
				return true
			},
			targetSupported: func(to echo.Target) bool {

					// HTTP protocol doesn't support raw TCP requests.
					return !p.IsTCP()
				},
				targetSupported: func(echo.Target) bool {
					return true
				},
				check: checkHTTP,
			},
			&providerImpl{
				name: grpcName,
				api:  GRPC,
				protocolSupported: func(protocol.Instance) bool {
					return true
				},
				targetSupported: func(echo.Target) bool {