/**
 * Represents the types of labels supported.
 */
export declare enum LabelType {
    /**
     * Allows for the creation of labels to exclude competing ads from showing on the same page.
     */
    COMPETITIVE_EXCLUSION = "COMPETITIVE_EXCLUSION",
    /**
     * Allows for the creation of limits on the frequency that a user sees a particular type of creative over a portion of the inventory.
     */
    AD_UNIT_FREQUENCY_CAP = "AD_UNIT_FREQUENCY_CAP",
    /**
     * Allows for the creation of labels to exclude ads from showing against a tag that specifies the label as an exclusion.
     */
    AD_EXCLUSION = "AD_EXCLUSION",
    /**
     * Allows for the creation of labels that can be used to force the wrapping of a delivering creative with header/footer creatives. These labels are paired with a CreativeWrapper.
     */
    CREATIVE_WRAPPER = "CREATIVE_WRAPPER",
    /**
     * Allows for the creation of labels mapped to a Google canonical ad category, which can be used for competitive exclusions and blocking across Google systems.
     */
    CANONICAL_CATEGORY = "CANONICAL_CATEGORY",
    /**
     * The value returned if the actual value is not exposed by the requested API version.
     */
    UNKNOWN = "UNKNOWN"
}
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