diff --git a/packages/google-cloud-datalabeling/test/gapic_data_labeling_service_v1beta1.ts b/packages/google-cloud-datalabeling/test/gapic_data_labeling_service_v1beta1.ts
index cedd2755793..f97f9df5b35 100644
--- a/packages/google-cloud-datalabeling/test/gapic_data_labeling_service_v1beta1.ts
+++ b/packages/google-cloud-datalabeling/test/gapic_data_labeling_service_v1beta1.ts
@@ -374,7 +374,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.CreateDatasetRequest()
       );
       request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.createDataset(request), expectedError);
@@ -505,7 +504,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetDatasetRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getDataset(request), expectedError);
@@ -636,7 +634,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.DeleteDatasetRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.deleteDataset(request), expectedError);
@@ -767,7 +764,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetDataItemRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getDataItem(request), expectedError);
@@ -899,7 +895,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetAnnotatedDatasetRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getAnnotatedDataset(request), expectedError);
@@ -1034,7 +1029,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.DeleteAnnotatedDatasetRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(
@@ -1168,7 +1162,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetExampleRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getExample(request), expectedError);
@@ -1303,7 +1296,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.CreateAnnotationSpecSetRequest()
       );
       request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(
@@ -1438,7 +1430,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetAnnotationSpecSetRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getAnnotationSpecSet(request), expectedError);
@@ -1573,7 +1564,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.DeleteAnnotationSpecSetRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(
@@ -1707,7 +1697,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetInstructionRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getInstruction(request), expectedError);
@@ -1838,7 +1827,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.DeleteInstructionRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.deleteInstruction(request), expectedError);
@@ -1969,7 +1957,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetEvaluationRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getEvaluation(request), expectedError);
@@ -2101,7 +2088,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.CreateEvaluationJobRequest()
       );
       request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.createEvaluationJob(request), expectedError);
@@ -2237,7 +2223,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
       );
       request.evaluationJob = {};
       request.evaluationJob.name = '';
-      const expectedHeaderRequestParams = 'evaluation_job.name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.updateEvaluationJob(request), expectedError);
@@ -2368,7 +2353,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.GetEvaluationJobRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.getEvaluationJob(request), expectedError);
@@ -2500,7 +2484,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.PauseEvaluationJobRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.pauseEvaluationJob(request), expectedError);
@@ -2632,7 +2615,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.ResumeEvaluationJobRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.resumeEvaluationJob(request), expectedError);
@@ -2764,7 +2746,6 @@ describe('v1beta1.DataLabelingServiceClient', () => {
         new protos.google.cloud.datalabeling.v1beta1.DeleteEvaluationJobRequest()
       );
       request.name = '';
-      const expectedHeaderRequestParams = 'name=';
       const expectedError = new Error('The client has already been closed.');
       client.close();
       await assert.rejects(client.deleteEvaluationJob(request), expectedError);