code: public OvhVoicemailMessages billingAccount_voicemail_serviceName_directories_id_GET(String billingAccount, String serviceName, Long id) throws IOException {
  		String qPath = "/telephony/{billingAccount}/voicemail/{serviceName}/directories/{id}";
  		StringBuilder sb = path(qPath, billingAccount, serviceName, id);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, OvhVoicemailMessages.class);
  	}
docs: Get this object properties
  
  REST: GET /telephony/{billingAccount}/voicemail/{serviceName}/directories/{id}
  @param billingAccount [required] The name of your billingAccount
  @param serviceName [required]
  @param id [required] Id of the object