public BatchGetTokenBalanceErrorItem withAtBlockchainInstant(BlockchainInstant atBlockchainInstant) {
        setAtBlockchainInstant(atBlockchainInstant);
        return this;
    }
@param atBlockchainInstant
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-managedblockchainquery/src/main/java/com/amazonaws/services/managedblockchainquery/model/BatchGetTokenBalanceErrorItem.java