dex

type IDex interface {
	// SpotPrice returns the spot price of baseToken/quoteToken, it indicates how much of the quote token is needed to purchase one unit of the base token.
	// If middleToken is not empty, it indicates the price of baseToken/middleTokens/quoteToken.
	// Get history spot price by specify blockNumber in call opts , if blockNumber is nil, it will return the latest spot price.
	SpotPrice(opts *bind.CallOpts, baseToken, quoteToken string, middleTokens ...string) (*decimal.Decimal, error)
	// Liquidity returns the liquidity of the pair.
	Liquidity(opts *bind.CallOpts, baseToken, quoteToken string) (*decimal.Decimal, *decimal.Decimal, error)
}