docs: public DeployKey addDeployKey(Object projectIdOrPath, String title, String key, Boolean canPush) throws GitLabApiException {
  
          GitLabApiForm formData = new GitLabApiForm()
                  .withParam("title", title, true)
                  .withParam("key", key, true)
                  .withParam("can_push",  canPush);
          Response response = post(Response.Status.CREATED, formData,
                  "projects", getProjectIdOrPath(projectIdOrPath), "deploy_keys");
          return (response.readEntity(DeployKey.class));
      }