import type { SessionData } from '@metamask/connect-multichain';
import type { Address, Hex } from '../types';
/**
 * Result of parsing a CAIP scope string.
 */
type ParsedScope = {
    namespace?: string;
    reference?: string;
};
/**
 * Parses a CAIP-217 scope string (`namespace` or `namespace:reference`) into
 * its components. See file header for upstream reference.
 *
 * @param scopeString - The scope string to parse.
 * @returns An object containing `namespace` and (optionally) `reference`.
 * Returns an empty object if the input is neither a valid CAIP namespace nor
 * a valid CAIP-2 chain ID.
 */
export declare const parseScopeString: (scopeString: string) => ParsedScope;
/**
 * Get the unique Ethereum (EIP-155) accounts from the session scopes.
 *
 * Walks every scope's `accounts` array, keeps CAIP-10 account IDs whose chain
 * is EIP-155 (or the `wallet:eip155` cross-chain wallet scope), and returns
 * the unique 0x addresses.
 *
 * @param sessionScopes - The session scopes from `wallet_createSession` /
 * `wallet_getSession` / `wallet_sessionChanged`.
 * @returns The unique Ethereum addresses across all EIP-155 scopes.
 */
export declare const getEthAccounts: (sessionScopes: SessionData["sessionScopes"] | undefined) => Address[];
/**
 * Get the unique permitted Ethereum (EIP-155) chain IDs from the session
 * scopes.
 *
 * Iterates the scope keys, keeps the `eip155:<reference>` ones, converts each
 * decimal `reference` to a `0x`-prefixed hex chain ID, and returns the unique
 * set.
 *
 * @param sessionScopes - The session scopes from `wallet_createSession` /
 * `wallet_getSession` / `wallet_sessionChanged`.
 * @returns The unique EIP-155 chain IDs as `0x`-prefixed hex strings.
 */
export declare const getPermittedEthChainIds: (sessionScopes: SessionData["sessionScopes"] | undefined) => Hex[];
export {};
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