getUnitMappings() {
			return mSettings["unitMappings"];
		}
Retrieves the unit mappings.
These unit mappings are set by {@link .setUnitMappings} and {@link .addUnitMappings}
@private
@returns {object} unit mapping object
@see {@link module:sap/base/i18n/Formatting.setUnitMappings}
@see {@link module:sap/base/i18n/Formatting.addUnitMappings}
@since 1.116.0