添加依赖
<dependency>
    <groupId>com.bloxbean.cardano</groupId>
    <artifactId>cardano-client-lib-extras</artifactId>
    <version>0.2.0-preview2</version>
</dependency>
implementation 'com.bloxbean.cardano:cardano-client-lib-extras:0.2.0-preview2'
com.bloxbean.cardano:cardano-client-lib-extras:0.2.0-preview2
<dependency org="com.bloxbean.cardano" name="cardano-client-lib-extras" rev="0.2.0-preview2" />
libraryDependencies += "com.bloxbean.cardano" % "cardano-client-lib-extras" % "0.2.0-preview2"
@Grab(group='com.bloxbean.cardano', module='cardano-client-lib-extras', version='0.2.0-preview2')
[com.bloxbean.cardano/cardano-client-lib-extras "0.2.0-preview2"]
'com.bloxbean.cardano:cardano-client-lib-extras:jar:0.2.0-preview2'