ChainNames type

Signature:

export type ChainNames =
  | "mainnet"
  | "ethereum"
  | "goerli"
  | "polygon"
  | "matic"
  | "mumbai"
  | "fantom"
  | "fantom-testnet"
  | "avalanche"
  | "avalanche-testnet"
  | "avalanche-fuji"
  | "optimism"
  | "optimism-goerli"
  | "arbitrum"
  | "arbitrum-goerli"
  | "binance"
  | "binance-testnet"
  | "hardhat"
  | "localhost";