public void setCustomJson(String customJson) {
        this.customJson = customJson;
    }
<p>
A string that contains user-defined, custom JSON. You can use this parameter to override some corresponding
default stack configuration JSON values. The string should be in the following format:
</p>
<p>
<code>"{\"key1\": \"value1\", \"key2\": \"value2\",...}"</code>
</p>
<p>
For more information about custom JSON, see <a
href="https://docs.aws.amazon.com/opsworks/latest/userguide/workingstacks-json.html">Use Custom JSON to Modify
the Stack Configuration Attributes</a> and <a
href="https://docs.aws.amazon.com/opsworks/latest/userguide/workingcookbook-json-override.html">Overriding
Attributes With Custom JSON</a>.
</p>

@param customJson
       A string that contains user-defined, custom JSON. You can use this parameter to override some
       corresponding default stack configuration JSON values. The string should be in the following format:</p>
       <p>
       <code>"{\"key1\": \"value1\", \"key2\": \"value2\",...}"</code>
       </p>
       <p>
       For more information about custom JSON, see <a
       href="https://docs.aws.amazon.com/opsworks/latest/userguide/workingstacks-json.html">Use Custom JSON to
       Modify the Stack Configuration Attributes</a> and <a
       href="https://docs.aws.amazon.com/opsworks/latest/userguide/workingcookbook-json-override.html">Overriding
       Attributes With Custom JSON</a>.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/CreateDeploymentRequest.java