### Question:
GrandparentAnimal { public GrandparentAnimal petType(String petType) { this.petType = petType; return this; }  GrandparentAnimal petType(String petType); @ApiModelProperty(required = true, value = "") @JsonProperty(JSON_PROPERTY_PET_TYPE) @JsonInclude(value = JsonInclude.Include.ALWAYS) String getPetType(); void setPetType(String petType); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString(); static final String JSON_PROPERTY_PET_TYPE; }### Answer:
@Test public void petTypeTest() { }