import { ImmutableArray } from "@tsplus/stdlib/collections/ImmutableArray/definition";
import { NonEmptyImmutableArray } from "@tsplus/stdlib/collections/NonEmptyImmutableArray/definition";
/**
 * @tsplus pipeable-operator NonEmptyImmutableArray &
 * @tsplus static NonEmptyImmutableArray.Aspects concat
 * @tsplus pipeable NonEmptyImmutableArray.Aspects concat
 * @tsplus location "@tsplus/stdlib/collections/NonEmptyImmutableArray/concat"
 */
export declare function concat<B>(that: ImmutableArray<B>): <A>(self: import("./definition").NonEmptyImmutableArray<A>) => import("./definition").NonEmptyImmutableArray<B | A>;
/**
 * Concatenates two NonEmptyImmutableArray together
 * @tsplus operator NonEmptyImmutableArray +
 * @tsplus location "@tsplus/stdlib/collections/NonEmptyImmutableArray/concat"
 */
export declare function concatOperator<A>(self: NonEmptyImmutableArray<A>, that: NonEmptyImmutableArray<A>): NonEmptyImmutableArray<A>;
export declare function concatOperator<A>(self: NonEmptyImmutableArray<A>, that: ImmutableArray<A>): NonEmptyImmutableArray<A>;
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