import type { ExternalScopeObject, ExternalScopesObject, InternalScopesObject, NormalizedScopeObject, NormalizedScopesObject } from './types.js';
/**
 * Returns a list of unique items
 *
 * @param list - The list of items to filter
 * @returns A list of unique items
 */
export declare const getUniqueArrayItems: <Value>(list: Value[]) => Value[];
/**
 * Normalizes a ScopeString and ExternalScopeObject into a separate
 * InternalScopeString and NormalizedScopeObject for each reference in the `references`
 * value if defined and adds an empty `accounts` array if not defined.
 *
 * @param scopeString - The string representing the scope
 * @param externalScopeObject - The object that defines the scope
 * @returns a map of caipChainId to ScopeObjects
 */
export declare const normalizeScope: (scopeString: string, externalScopeObject: ExternalScopeObject) => NormalizedScopesObject;
/**
 * Merges two NormalizedScopeObjects
 *
 * @param scopeObjectA - The first scope object to merge.
 * @param scopeObjectB - The second scope object to merge.
 * @returns The merged scope object.
 */
export declare const mergeScopeObject: (scopeObjectA: NormalizedScopeObject, scopeObjectB: NormalizedScopeObject) => NormalizedScopeObject;
/**
 * Merges two NormalizedScopeObjects
 *
 * @param scopeA - The first normalized scope object to merge.
 * @param scopeB - The second normalized scope object to merge.
 * @returns The merged normalized scope object from the [CAIP-25](https://github.com/ChainAgnostic/CAIPs/blob/main/CAIPs/caip-25.md) request.
 */
export declare const mergeNormalizedScopes: (scopeA: NormalizedScopesObject, scopeB: NormalizedScopesObject) => NormalizedScopesObject;
/**
 * Merges two InternalScopeObjects
 *
 * @param scopeA - The first internal scope object to merge.
 * @param scopeB - The second internal scope object to merge.
 * @returns The merged internal scope object from the [CAIP-25](https://github.com/ChainAgnostic/CAIPs/blob/main/CAIPs/caip-25.md) request.
 */
export declare const mergeInternalScopes: (scopeA: InternalScopesObject, scopeB: InternalScopesObject) => InternalScopesObject;
/**
 * Normalizes and merges a set of ExternalScopesObjects into a NormalizedScopesObject (i.e. a set of NormalizedScopeObjects where references are flattened).
 *
 * @param scopes - The external scopes to normalize and merge.
 * @returns The normalized and merged scopes.
 */
export declare const normalizeAndMergeScopes: (scopes: ExternalScopesObject) => NormalizedScopesObject;
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