import { CurrencyTypes, StorageTypes } from '@requestnetwork/types';
import { BigNumber } from 'ethers';
export declare function getDefaultIpfsUrl(): string;
export declare function getDefaultIpfsTimeout(): number;
/**
 * Retrieve from config the default provider url for Ethereum
 * @returns the url to connect to the network
 */
export declare function getDefaultEthereumProvider(): string;
/**
 * Retrieve from config the timeout threshold for the default provider url for Ethereum
 * @returns the url to connect to the network
 */
export declare function getDefaultEthereumProviderTimeout(): number;
/**
 * Retrieve from config the default name of the network for Ethereum
 * @returns the name of the network
 */
export declare function getDefaultEthereumNetwork(): CurrencyTypes.EvmChainName;
/**
 * Retrieve from config the default gas price to make transactions into Ethereum network
 * @returns the gas price as a string
 */
export declare function getDefaultEthereumGasPrice(): BigNumber;
/**
 * Retrieve from config the default number of block confirmations to wait before considering a transaction successful
 * @returns the number of block confirmations
 */
export declare function getDefaultEthereumBlockConfirmations(): number;
/**
 * Retrieve from config the maximum number of query retries
 * @returns the maximum amount of query retries
 */
export declare function getEthereumMaxRetries(): number;
/**
 * Retrieve from config the safe gas price limit
 * This value ensures we don't use a value returned by an API provider
 * that can be unsafe to use (very high gas price that generate loss of ether)
 * @returns safe gas price limit
 */
export declare function getSafeGasPriceLimit(): string;
/**
 * Retrieve from config the maximum number of retries on failed IPFS calls
 * @returns array of the swarm addresses
 */
export declare function getIpfsErrorHandlingConfig(): StorageTypes.IIpfsErrorHandlingConfiguration;
/**
 * Retrieve from config the ipfs bootstrap nodes of the ipfs node
 * @returns array of the swarm addresses regexes
 */
export declare function getIpfsExpectedBootstrapNodes(): RegExp[];
/**
 * Retrieve from config the number of times we retry to read hashes on IPFS
 * @returns Number of times we retry to read hashes on IPFS
 */
export declare function getMaxIpfsReadRetry(): number;
/**
 * Retrieve from config the amount of time to wait before a transaction is considered failed
 */
export declare function getTransactionPollingTimeout(): number;
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