1/** 2Create an array of unique values, in order, from the input arrays. 3 4@example 5``` 6import arrayUnion = require('array-union'); 7 8arrayUnion([1, 1, 2, 3], [2, 3]); 9//=> [1, 2, 3] 10 11arrayUnion(['foo', 'foo', 'bar']); 12//=> ['foo', 'bar'] 13 14arrayUnion(['🐱', '🦄', '🐻'], ['🦄', '🌈']); 15//=> ['🐱', '🦄', '🐻', '🌈'] 16 17arrayUnion(['🐱', '🦄'], ['🐻', '🦄'], ['🐶', '🌈', '🌈']); 18//=> ['🐱', '🦄', '🐻', '🐶', '🌈'] 19``` 20*/ 21declare function arrayUnion<ArgumentsType extends readonly unknown[]>( 22 ...arguments: readonly ArgumentsType[] 23): ArgumentsType; 24 25export = arrayUnion; 26 27