code: public ArrayList<Long> billingAccount_service_serviceName_repaymentConsumption_GET(String billingAccount, String serviceName, Date creationDatetime_from, Date creationDatetime_to) throws IOException {
  		String qPath = "/telephony/{billingAccount}/service/{serviceName}/repaymentConsumption";
  		StringBuilder sb = path(qPath, billingAccount, serviceName);
  		query(sb, "creationDatetime.from", creationDatetime_from);
  		query(sb, "creationDatetime.to", creationDatetime_to);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, t2);
  	}
docs: Call which could be repayable
  
  REST: GET /telephony/{billingAccount}/service/{serviceName}/repaymentConsumption
  @param creationDatetime_to [required] Filter the value of creationDatetime property (<=)
  @param creationDatetime_from [required] Filter the value of creationDatetime property (>=)
  @param billingAccount [required] The name of your billingAccount
  @param serviceName [required]