### Question:
ReceiptResponse { public ReceiptResponse receipt(Receipt receipt) { this.receipt = receipt; return this; }  ReceiptResponse receipt(Receipt receipt); @ApiModelProperty(required = true, value = "") Receipt getReceipt(); void setReceipt(Receipt receipt); @Override boolean equals(java.lang.Object o); @Override int hashCode(); @Override String toString(); static final String SERIALIZED_NAME_RECEIPT; }### Answer:
@Test public void receiptTest() { }