import { Equivalence } from "@tsplus/stdlib/prelude/Equivalence/definition";
import { ImmutableArray } from "@tsplus/stdlib/collections/ImmutableArray/definition";
/**
 * Remove duplicates from an array, keeping the first occurrence of an element.
 * @tsplus static ImmutableArray.Aspects uniq
 * @tsplus pipeable ImmutableArray uniq
 * @tsplus location "@tsplus/stdlib/collections/ImmutableArray/uniq"
 */
export declare function uniq<A>(E: Equivalence<A>): (self: ImmutableArray<A>) => ImmutableArray<A>;
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