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getChain

struct Chain {
/// The chain name.
string name;
/// The chain's Chain ID.
uint256 chainId;
/// The chain's alias. (i.e. what gets specified in `foundry.toml`).
string chainAlias;
/// A default RPC endpoint for this chain.
string rpcUrl;
}
function getChain(
string calldata chainAlias
) external view returns (Chain memory chain);
function getChain(uint256 chainId) external view returns (Chain memory chain);

Returns a Chain struct for specific chainId or chainAlias.