code: @Override
      public void setRootUri(String rootUri) {
          this.jsonHttpClient.setRootUri(rootUri);
          this.streamOpsgenieHttpClient.setRootUri(rootUri);
          this.restApiClient.setRootUrl(rootUri);
          this.swaggerApiClient.setBasePath(rootUri);
      }
docs: Set root endpoint uri that the client uses to send http requests. Default is
  https://api.opsgenie.com. Mostly used for testing.
  
  @param rootUri Uri to set.