public DescribeRegionSettingsResult addResourceTypeManagementPreferenceEntry(String key, Boolean value) {
        if (null == this.resourceTypeManagementPreference) {
            this.resourceTypeManagementPreference = new java.util.HashMap<String, Boolean>();
        }
        if (this.resourceTypeManagementPreference.containsKey(key))
            throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
        this.resourceTypeManagementPreference.put(key, value);
        return this;
    }
Add a single ResourceTypeManagementPreference entry

@see DescribeRegionSettingsResult#withResourceTypeManagementPreference
@returns a reference to this object so that method calls can be chained together.
aws-java-sdk-backup/src/main/java/com/amazonaws/services/backup/model/DescribeRegionSettingsResult.java