docs: public Pipeline createPipeline(Object projectIdOrPath, String ref, Map<String, String> variables) throws GitLabApiException {
  
          GitLabApiForm formData = new GitLabApiForm()
                  .withParam("ref", ref, true)
                  .withParam("variables", variables, false);
          Response response = post(Response.Status.CREATED, formData.asMap(), "projects", getProjectIdOrPath(projectIdOrPath), "pipeline");
          return (response.readEntity(Pipeline.class));
      }