import { type Transaction, type UnlockingScript, type TransactionInput } from "@bsv/sdk";
import { type NftUtxo, type TokenSelectionOptions, type TokenSelectionResult, TokenType, type TokenUtxo, type Utxo } from "../types";
/**
 * Converts a Utxo object with a base64 encoded script to a TransactionInput
 * @param {Utxo} utxo - Utxo object with base64 encoded script
 * @param {Object} [unlockScriptTemplate] - Optional. Object with sign and estimateLength functions.
 *   When omitted, creates input for external signing (signInputs: false mode) with fee estimation only.
 * @returns {TransactionInput} Transaction input with source info
 */
export declare const inputFromB64Utxo: (utxo: Utxo, unlockScriptTemplate?: {
    sign: (tx: Transaction, inputIndex: number) => Promise<UnlockingScript>;
    estimateLength: (tx: Transaction, inputIndex: number) => Promise<number>;
}) => TransactionInput;
/**
 * Fetches pay utxos from the API
 * @param {string} address - Address to fetch utxos for
 * @returns {Promise<Utxo[]>} Array of pay utxos
 */
export declare const fetchPayUtxos: (address: string, scriptEncoding?: "hex" | "base64" | "asm") => Promise<Utxo[]>;
/**
 * Fetches NFT utxos from the API
 * @param {string} address - Address to fetch utxos for
 * @param {string} [collectionId] - Optional. Collection id (collection insciprtion origin)
 * @param {number} [limit=10] - Optional. Number of utxos to fetch. Default is 10
 * @param {number} [offset=0] - Optional. Offset for fetching utxos. Default is 0
 * @param {string} [scriptEncoding="base64"] - Optional. Encoding for the script. Default is base64. Options are hex, base64, or asm.
 * @returns {Promise<Utxo[]>} Array of NFT utxos
 */
export declare const fetchNftUtxos: (address: string, collectionId?: string, limit?: number, offset?: number, scriptEncoding?: "hex" | "base64" | "asm") => Promise<NftUtxo[]>;
/**
 * Fetches token utxos from the API
 * @param {TokenType} protocol - Token protocol. Either BSV20 or BSV21
 * @param {string} tokenId - Token id. Ticker for BSV20 and id (mint+deploy inscription origin) for BSV21
 * @param {string} address - Address to fetch utxos for
 * @param {number} [limit=10] - Number of utxos to fetch. Default is 10
 * @param {number} [offset=0] - Offset for fetching utxos. Default is 0
 * @returns {Promise<TokenUtxo[]>} Array of token utxos
 */
export declare const fetchTokenUtxos: (protocol: TokenType, tokenId: string, address: string, limit?: number, offset?: number) => Promise<TokenUtxo[]>;
/**
 * Selects token UTXOs based on the required amount and specified strategies.
 * @param {TokenUtxo[]} tokenUtxos - Array of token UTXOs.
 * @param {number} requiredTokens - Required amount in tokens (displayed amount).
 * @param {number} decimals - Number of decimal places for the token.
 * @param {TokenSelectionOptions} [options={}] - Options for token selection.
 * @returns {TokenSelectionResult} Selected token UTXOs and total selected amount.
 */
export declare const selectTokenUtxos: (tokenUtxos: TokenUtxo[], requiredTokens: number, decimals: number, options?: TokenSelectionOptions) => TokenSelectionResult;