code: public Observable<Page<ManagedBackupShortTermRetentionPolicyInner>> listByDatabaseNextAsync(final String nextPageLink) {
          return listByDatabaseNextWithServiceResponseAsync(nextPageLink)
              .map(new Func1<ServiceResponse<Page<ManagedBackupShortTermRetentionPolicyInner>>, Page<ManagedBackupShortTermRetentionPolicyInner>>() {
                  @Override
                  public Page<ManagedBackupShortTermRetentionPolicyInner> call(ServiceResponse<Page<ManagedBackupShortTermRetentionPolicyInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Gets a managed database's short term retention policy list.
  
  @param nextPageLink The NextLink from the previous successful call to List operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;ManagedBackupShortTermRetentionPolicyInner&gt; object