feat: add support for change streams transaction exclusion option for Batch Write (#2070)

* feat: change stream transaction exclusion option for Batch Write * refactor

Author: alkatrivedi

src/database.ts

@@ -3289,6 +3289,7 @@ class Database extends common.GrpcServiceObject {
  session: session!.formattedName_!,
  mutationGroups: mutationGroups.map(mg => mg.proto()),
  requestOptions: options?.requestOptions,
+ excludeTxnFromChangeStream: options?.excludeTxnFromChangeStreams,
  }
  );
  let dataReceived = false;

src/transaction.ts

@@ -62,6 +62,7 @@ export interface TimestampBounds {
 export interface BatchWriteOptions {
  requestOptions?: Pick<IRequestOptions, 'priority' | 'transactionTag'>;
  gaxOptions?: CallOptions;
+ excludeTxnFromChangeStreams?: boolean;
 }
 
 export interface RequestOptions {

test/database.ts

@@ -600,6 +600,7 @@ describe('Database', () => {
  requestOptions: {
  transactionTag: 'batch-write-tag',
  },
+ excludeTxnFromChangeStream: true,
  gaxOptions: {autoPaginate: false},
  } as BatchWriteOptions;
 
@@ -644,6 +645,7 @@ describe('Database', () => {
  session: fakeSession!.formattedName_!,
  mutationGroups: mutationGroups.map(mg => mg.proto()),
  requestOptions: options?.requestOptions,
+ excludeTxnFromChangeStream: options?.excludeTxnFromChangeStreams,
  }
  );