### Question:
ReceiptUpdateParams { public ReceiptUpdateParams issueDate(String issueDate) { this.issueDate = issueDate; return this; }  ReceiptUpdateParams companyId(Integer companyId); @ApiModelProperty(example = "1", required = true, value = "事業所ID") Integer getCompanyId(); void setCompanyId(Integer companyId); ReceiptUpdateParams description(String description); @javax.annotation.Nullable @ApiModelProperty(example = "メモ", value = "メモ (255文字以内)") String getDescription(); void setDescription(String description); ReceiptUpdateParams issueDate(String issueDate); @ApiModelProperty(example = "2018-01-01", required = true, value = "取引日 (yyyy-mm-dd)") String getIssueDate(); void setIssueDate(String issueDate); @Override boolean equals(java.lang.Object o); @Override int hashCode(); @Override String toString(); static final String SERIALIZED_NAME_COMPANY_ID; static final String SERIALIZED_NAME_DESCRIPTION; static final String SERIALIZED_NAME_ISSUE_DATE; }### Answer:
@Test public void issueDateTest() { }