code: public com.google.api.ads.admanager.axis.v201902.AdExclusionRuleType getType() {
          return type;
      }
docs: Gets the type value for this AdExclusionRule.
  
  @return type   * The derived type of this rule: whether it is associated with
  labels, unified entities,
  or competitive groups.  Because it is derived, it
  is also read-only, so changes made to this
  field will not be persisted.