code: public final <C extends GenomicsRequest<D>, D> D execute(C request) throws IOException {
      for (Instance instance = createInstance(); true;) {
        try {
          return request.execute();
        } catch (IOException e) {
          if (!instance.shouldRetry(request, e)) {
            throw e;
          }
        }
      }
    }
docs: Execute the given {@link GenomicsRequest} and return the response.
  
  This method begins by creating an {@code RetryPolicy.Instance} and then attempts to execute the
  request by invoking {@link GenomicsRequest#execute}. If the request fails with an
  {@link IOException}, the {@link RetryPolicy.Instance#shouldRetry} method is consulted to
  determine if the request should be retried.
  
  @param request The {@code GenomicsRequest} to execute.
  @return The response from executing the request.
  @throws IOException if executing the request fails and {@code this} RetryPolicy decides not to
  retry the request.