public EnvironmentSummary withAwsAccountId(String awsAccountId) {
        setAwsAccountId(awsAccountId);
        return this;
    }
<p>
The identifier of the Amazon Web Services account in which an environment exists.
</p>

@param awsAccountId
       The identifier of the Amazon Web Services account in which an environment exists.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-datazoneexternal/src/main/java/com/amazonaws/services/datazone/model/EnvironmentSummary.java