/// A wrapper around [`BaseFeeParams`] that allows for specifying constant or dynamic EIP-1559
/// parameters based on the active [Hardfork].
#[derive(Clone, Debug, PartialEq, Eq)]
pub enum BaseFeeParamsKind {
    /// Constant [`BaseFeeParams`]; used for chains that don't have dynamic EIP-1559 parameters
    Constant(BaseFeeParams),
    /// Variable [`BaseFeeParams`]; used for chains that have dynamic EIP-1559 parameters like
    /// Optimism
    Variable(ForkBaseFeeParams),
}