public LineageNodeTypeItem addFormsOutputEntry(String key, FormEntryOutput value) {
        if (null == this.formsOutput) {
            this.formsOutput = new java.util.HashMap<String, FormEntryOutput>();
        }
        if (this.formsOutput.containsKey(key))
            throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
        this.formsOutput.put(key, value);
        return this;
    }
Add a single FormsOutput entry

@see LineageNodeTypeItem#withFormsOutput
@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/LineageNodeTypeItem.java