Check if value exists in enum in TypeScript

I receive a number type = 3 and have to check if it exists in this enum:
export const MESSAGE_TYPE = {
INFO: 1,
SUCCESS: 2,
WARNING: 3,
ERROR: 4,
};



The best way I found is by getting all Enum Values as an array and using indexOf on it. But the resulting code isn't very legible:
if( -1 < _.values( MESSAGE_TYPE ).indexOf( _.toInteger( type ) ) ) {
// do stuff ...
}



Is there a simpler way of doing this?