static setDocumentationRef(oElement, vDocumentationRefs) {
			const aValue = Array.isArray(vDocumentationRefs) ? vDocumentationRefs : [vDocumentationRefs];
			const sDocumentationRefKey = FieldHelpCustomData.DOCUMENTATION_REF_KEY;
			const oDocumentationRefCustomData = oElement.getCustomData().find((oCustomData) =>
				oCustomData.getKey() === sDocumentationRefKey
			);
			if (oDocumentationRefCustomData) {
				if (!(oDocumentationRefCustomData instanceof FieldHelpCustomData)) {
					throw new Error(`Unsupported custom data type for key "${sDocumentationRefKey}"`);
				}
				oDocumentationRefCustomData.setValue(aValue);
			} else {
				const oCustomData = new FieldHelpCustomData({
					key: FieldHelpCustomData.DOCUMENTATION_REF_KEY,
					value: aValue
				});
				oElement.addAggregation("customData", oCustomData, true);
			}
		}
Sets the field help information for the given element as <code>sap-ui-DocumentationRef</code> custom data.
Note that field help inferred from data bindings of control properties is overwritten by this method unless
an empty array is given in parameter <code>vDocumentationRefs</code>.

@param {sap.ui.core.Element} oElement
  The element on which to set the field help
@param {string|string[]} vDocumentationRefs
  The string value or an array of string values of
  <code>com.sap.vocabularies.Common.v1.DocumentationRef</code> OData annotations, for example
  <code>"urn:sap-com:documentation:key?=type=DE&id=MY_ID&origin=MY_ORIGIN"</code>"
@throws {Error}
  If there is already a custom data with key <code>sap-ui-DocumentationRef</code> that is not of type
  {@link module:sap/ui/core/fieldhelp/FieldHelpCustomData}

@public