code: public OvhTrunkExternalDisplayedNumber billingAccount_trunk_serviceName_externalDisplayedNumber_POST(String billingAccount, String serviceName, Boolean autoValidation, String number) throws IOException {
  		String qPath = "/telephony/{billingAccount}/trunk/{serviceName}/externalDisplayedNumber";
  		StringBuilder sb = path(qPath, billingAccount, serviceName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "autoValidation", autoValidation);
  		addBody(o, "number", number);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhTrunkExternalDisplayedNumber.class);
  	}
docs: External displayed number creation for a given trunk
  
  REST: POST /telephony/{billingAccount}/trunk/{serviceName}/externalDisplayedNumber
  @param number [required] External displayed number to create, in international format
  @param autoValidation [required] External displayed number auto-validation. Only available for partner. Must be owner of the number.
  @param billingAccount [required] The name of your billingAccount
  @param serviceName [required] Name of the service