@Override
    public String getTargetRestEndpointURL() {
        return "/jobs/:"
                + JobIDPathParameter.KEY
                + "/vertices/:"
                + JobVertexIdPathParameter.KEY
                + "/metrics";
    }
@Test
    void testUrl() {
        assertThat(jobVertexMetricsHeaders.getTargetRestEndpointURL())
                .isEqualTo(
                        "/jobs/:"
                                + JobIDPathParameter.KEY
                                + "/vertices/:"
                                + JobVertexIdPathParameter.KEY
                                + "/metrics");
    }