// Shared property types, interfaces, and value helpers for properties and view-base modules.
// Only put platform-agnostic logic here.
/**
 * Value specifying that Property should be set to its initial value.
 */
export const unsetValue = new Object();
export function isCssUnsetValue(value) {
    return value === 'unset' || value === 'revert';
}
export function isResetValue(value) {
    return value === unsetValue || value === 'initial' || value === 'inherit' || isCssUnsetValue(value);
}
export function isCssWideKeyword(value) {
    return value === 'initial' || value === 'inherit' || isCssUnsetValue(value);
}
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