public Boolean isEssential() {
        return this.essential;
    }
<p>
Whether the container is essential. All tasks must have at least one essential container.
</p>

@return Whether the container is essential. All tasks must have at least one essential container.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsEcsTaskDefinitionContainerDefinitionsDetails.java