### Question:
AccountHistoryResponse { public AccountHistoryResponse account(String account) { this.account = account; return this; }  AccountHistoryResponse account(String account); @ApiModelProperty(example = "nano_1hzoje373eapce4ses7xsx539suww5555hi9q8i8j7hpbayzxq4c4nn91hr8", value = "") String getAccount(); void setAccount(String account); AccountHistoryResponse history(List<Block> history); AccountHistoryResponse addHistoryItem(Block historyItem); @ApiModelProperty(value = "") List<Block> getHistory(); void setHistory(List<Block> history); AccountHistoryResponse previous(String previous); @ApiModelProperty(example = "8D3AB98B301224253750D448B4BD997132400CEDD0A8432F775724F2D9821C72", value = "") String getPrevious(); void setPrevious(String previous); @Override boolean equals(java.lang.Object o); @Override int hashCode(); @Override String toString(); static final String SERIALIZED_NAME_ACCOUNT; static final String SERIALIZED_NAME_HISTORY; static final String SERIALIZED_NAME_PREVIOUS; }### Answer:
@Test public void accountTest() { }