### Question:
BlockInfoRequest { public BlockInfoRequest hash(String hash) { this.hash = hash; return this; }  BlockInfoRequest action(ActionEnum action); @ApiModelProperty(required = true, value = "") ActionEnum getAction(); void setAction(ActionEnum action); BlockInfoRequest jsonBlock(ModelBoolean jsonBlock); @ApiModelProperty(value = "Defaults to `\"false\"`. If `\"true\"`, `\"block\"` contains a JSON subtree instead of a JSON string.") ModelBoolean getJsonBlock(); void setJsonBlock(ModelBoolean jsonBlock); BlockInfoRequest hash(String hash); @ApiModelProperty(example = "8D3AB98B301224253750D448B4BD997132400CEDD0A8432F775724F2D9821C72", required = true, value = "") String getHash(); void setHash(String hash); @Override boolean equals(java.lang.Object o); @Override int hashCode(); @Override String toString(); static final String SERIALIZED_NAME_ACTION; static final String SERIALIZED_NAME_JSON_BLOCK; static final String SERIALIZED_NAME_HASH; }### Answer:
@Test public void hashTest() { }