code: public GitlabSSHKey createDeployKey(Integer targetProjectId, String title, String key) throws IOException {
          return createDeployKey(targetProjectId, title, key, false);
      }
docs: Create a new deploy key for the project
  
  @param targetProjectId The id of the Gitlab project
  @param title           The title of the ssh key
  @param key             The public key
  @return The new GitlabSSHKey
  @throws IOException on gitlab api call error