import Contract from 'web3/eth/contract';
import { TransactionObject } from 'web3/eth/types';
import { IConnection } from './Connection';
import { IEnrichedTransactionParameters } from './Transaction';
/**
 * The token-class of the wallet
 */
export declare class Token {
    connection: IConnection;
    /**
     * initializes the class
     * @param connection The backend connection object.
     */
    constructor(connection: IConnection);
    /**
     * Gets an ERC20-token instance
     * @param token The ERC20-token address
     * @returns The ERC20-token contract instance
     */
    getErc20Instance(token: string): Promise<Contract>;
    /**
     * Gets the amount of tokens in existence for the ERC20-contract
     * @param token The ERC20-token address
     * @returns THe amount of tokens in existence
     */
    getTotalSupply(token: string): Promise<string>;
    /**
     * Gets the amount of tokens owned by account
     * @param token The ERC20-token address
     * @param account The account whose balance should be checked
     * @returns THe amount of tokens owned by the account
     */
    getBalance(token: string, account: string): Promise<string>;
    /**
     * Moves an amount of tokens from the sender's account to recipient.
     * @param token The ERC20-token address
     * @param amount The amount of ERC20-tokens to transfer
     * @param to The recipient of the tokens
     * @returns The transaction-receipt
     */
    transfer(token: string, amount: string, to: string): Promise<TransactionObject<any>>;
    /**
     * Gets the remaining number of ERC20-tokens that the spender will be allowed to spend on behalf of owner through transferFrom.
     * This is zero by default.
     * @param token The ERC20-token address
     * @param owner THe owner of the ERC20-tokens
     * @param account The account whose allowance should be checked
     * @returns The allowance of the account
     */
    getAllowance(token: string, owner: string, account: string): Promise<string>;
    /**
     * Sets the provided amount as the allowance of the spender over the caller's ERC20-tokens
     * @param token The token address
     * @param spender The spender address
     * @param amount The allowance-amount
     * @returns The transaction-receipt
     */
    setAllowance(token: string, spender: string, amount: string): Promise<TransactionObject<any>>;
    /**
     * Moves the amount of ERC20-tokens from sender to recipient using the allowance mechanism. The amount is then deducted from the
     * caller’s allowance.
     * @param token The token address
     * @param spender The spender address
     * @param recipient The recipient address
     * @param amount The allowance amount
     * @returns The transaction-receipt
     */
    transferFrom(token: string, spender: string, recipient: string, amount: string): Promise<TransactionObject<any>>;
    /**
     * Gets the symbol of the token. `symbol()` is optional to implement on ERC20-tokens,
     * if `symbol()` is not defined null will be returned
     * @param token The address of the ERC20-token
     * @returns The symbol of the ERC20-token
     */
    getSymbol(token: string): Promise<string>;
    /**
     * Gets the name of the token. `name()` is optional to implement on ERC20-tokens,
     * if `name()` is not defined null will be returned
     * @param token The address of the ERC20-token
     * @returns The name of the ERC20-token
     */
    getName(token: string): Promise<string>;
    /**
     * Gets the decimals of the token. `decimals()` is optional to implement on ERC20-tokens,
     * if `decimals()` is not defined null will be returned
     * @param token The address of the ERC20-token
     * @returns the decimals of the ERC20-token
     */
    getDecimals(token: string): Promise<string>;
    /**
     * Prepares an IAMO-Safe transaction that moves an amount of ERC20-tokens from the Safe's account to recipient.
     * @param instanceAddress The IAMO-Safe instance address
     * @param token The ERC20-token address
     * @param amount The amount of ERC20-tokens to transfer
     * @param to The recipient of the ERC20-tokens
     * @returns The prepared safe-transaction-parameters to transfer
     */
    transferErc20OverSafe(instanceAddress: string, token: string, amount: string, to: string): Promise<IEnrichedTransactionParameters>;
    /**
     * Prepares an IAMO Safe transaction to set the amount as the allowance of spender over the Safe's ERC20-tokens.
     * @param instanceAddress The IAMO-Safe instance address
     * @param token The ERC20-token address
     * @param spender The spender address
     * @param amount The allowance-address
     * @returns The prepared Safe-transaction parameters to set an allowance
     */
    setErc20AllowanceForSafe(instanceAddress: string, token: string, spender: string, amount: string): Promise<IEnrichedTransactionParameters>;
    /**
     * Prepares an IAMO Safe transaction to set the amount as the allowance of spender over the Safe's tokens.
     * @param instanceAddress The IAMO-Safe instance address
     * @param token The ERC20-token address
     * @param spender The spender address
     * @param recipient The recipient address
     * @param amount The allowance amount
     * @returns The prepared Safe-transaction parameters to transfer from the Safe's allowance
     */
    transferFromErc20SafeAllowance(instanceAddress: string, token: string, spender: string, recipient: string, amount: string): Promise<IEnrichedTransactionParameters>;
    /**
     * Attempts to decode transaction data to check if the tx is a token tx
     * @param tx The enriched transaction parameters to check
     * @returns The recipient, amount and ERC20-token if the transaction is a transaction and null otherwise
     */
    decodeTokenERC20Transfer(tx: IEnrichedTransactionParameters): {
        to: string;
        amount: string;
        token: string;
    };
}
export default Token;