### Question:
MetaStoreEvent { public boolean isCascade() { if (environmentContext == null) { return false; } return Boolean.valueOf(environmentContext.get(StatsSetupConst.CASCADE)); } private  MetaStoreEvent(Builder builder); static Builder builder(
      EventType eventType,
      String databaseName,
      String tableName,
      String replicaDatabaseName,
      String replicaTableName); EventType getEventType(); String getDatabaseName(); String getTableName(); String getReplicaDatabaseName(); String getReplicaTableName(); List<String> getPartitionColumns(); List<List<String>> getPartitionValues(); Map<String, String> getParameters(); Map<String, String> getEnvironmentContext(); ReplicationMode getReplicationMode(); String getQualifiedTableName(); String getQualifiedReplicaTableName(); boolean isDropEvent(); boolean isDeleteData(); boolean isCascade();  }### Answer:
@Test public void isCascade() { MetaStoreEvent event = MetaStoreEvent .builder(CREATE_TABLE, DATABASE, TABLE, REPLICA_DATABASE, REPLICA_TABLE) .environmentContext(ImmutableMap.of(StatsSetupConst.CASCADE, "true")) .build(); assertThat(event.isCascade()).isTrue(); }