How to use io.swagger.client.model

public static DirectDebitTypeEnum fromValue(String text) {
 for (DirectDebitTypeEnum b : DirectDebitTypeEnum.values()) {
  if (String.valueOf(b.value).equals(text)) {
   return b;
  }
 }
 return null;
}

public static SequenceTypeEnum fromValue(String text) {
 for (SequenceTypeEnum b : SequenceTypeEnum.values()) {
  if (String.valueOf(b.value).equals(text)) {
   return b;
  }
 }
 return null;
}

public static TypeEnum fromValue(String text) {
 for (TypeEnum b : TypeEnum.values()) {
  if (String.valueOf(b.value).equals(text)) {
   return b;
  }
 }
 return null;
}

@Test(expected = ApiException.class)
public void messagesPostTestFailsIfBodyIsInvalid() throws ApiException {
  MessageJSON body = new MessageJSON();
  From sender = new From();
  sender.userId(null);
  List<To> receivers = new ArrayList<>();
  Text text = new Text();
  text.plain("TEST MESSAGE");
  body.from(sender);
  body.to(receivers);
  body.text(text);
  api.messagesPost(accessToken, body);
}

public static DirectionEnum fromValue(String text) {
 for (DirectionEnum b : DirectionEnum.values()) {
  if (String.valueOf(b.value).equals(text)) {
   return b;
  }
 }
 return null;
}

public static TriggerEventEnum fromValue(String text) {
 for (TriggerEventEnum b : TriggerEventEnum.values()) {
  if (String.valueOf(b.value).equals(text)) {
   return b;
  }
 }
 return null;
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class UpdateTransactionsParams {\n");
 
 sb.append("    isNew: ").append(toIndentedString(isNew)).append("\n");
 sb.append("    isPotentialDuplicate: ").append(toIndentedString(isPotentialDuplicate)).append("\n");
 sb.append("    categoryId: ").append(toIndentedString(categoryId)).append("\n");
 sb.append("    trainCategorization: ").append(toIndentedString(trainCategorization)).append("\n");
 sb.append("    labelIds: ").append(toIndentedString(labelIds)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class NotificationRuleParams {\n");
 
 sb.append("    triggerEvent: ").append(toIndentedString(triggerEvent)).append("\n");
 sb.append("    params: ").append(toIndentedString(params)).append("\n");
 sb.append("    callbackHandle: ").append(toIndentedString(callbackHandle)).append("\n");
 sb.append("    includeDetails: ").append(toIndentedString(includeDetails)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class ChangeClientCredentialsParams {\n");
 
 sb.append("    clientId: ").append(toIndentedString(clientId)).append("\n");
 sb.append("    oldClientSecret: ").append(toIndentedString(oldClientSecret)).append("\n");
 sb.append("    newClientSecret: ").append(toIndentedString(newClientSecret)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class AccountParams {\n");
 
 sb.append("    accountName: ").append(toIndentedString(accountName)).append("\n");
 sb.append("    accountTypeId: ").append(toIndentedString(accountTypeId)).append("\n");
 sb.append("    isNew: ").append(toIndentedString(isNew)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class PageableCategoryList {\n");
 
 sb.append("    categories: ").append(toIndentedString(categories)).append("\n");
 sb.append("    paging: ").append(toIndentedString(paging)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class ExecuteSepaMoneyTransferParams {\n");
 
 sb.append("    accountId: ").append(toIndentedString(accountId)).append("\n");
 sb.append("    bankingTan: ").append(toIndentedString(bankingTan)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class ClearingAccountData {\n");
 
 sb.append("    clearingAccountId: ").append(toIndentedString(clearingAccountId)).append("\n");
 sb.append("    clearingAccountName: ").append(toIndentedString(clearingAccountName)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class PageableLabelList {\n");
 
 sb.append("    labels: ").append(toIndentedString(labels)).append("\n");
 sb.append("    paging: ").append(toIndentedString(paging)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class LabelList {\n");
 
 sb.append("    labels: ").append(toIndentedString(labels)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class KeywordRulesParams {\n");
 
 sb.append("    keywordRules: ").append(toIndentedString(keywordRules)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class IdentifiersParams {\n");
 
 sb.append("    ids: ").append(toIndentedString(ids)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class IbanRulesParams {\n");
 
 sb.append("    ibanRules: ").append(toIndentedString(ibanRules)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class SecurityList {\n");
 
 sb.append("    securities: ").append(toIndentedString(securities)).append("\n");
 sb.append("}");
 return sb.toString();
}

@Override
public String toString() {
 StringBuilder sb = new StringBuilder();
 sb.append("class TriggerCategorizationParams {\n");
 
 sb.append("    bankConnectionIds: ").append(toIndentedString(bankConnectionIds)).append("\n");
 sb.append("}");
 return sb.toString();
}