IsNodeObserver checks if a node is an observer for the given source chain.

NewCCIPReaderWithExtendedContractReaders can be used when you want to directly provide contractreader.Extended.

TODO, this should be fetched from USDC Token Pool and cached.

GetAllConfigsResponse mirrors RMNHome.sol's getAllConfigs() return value.

LatestRoundData is what AggregatorV3Interface returns for price feed https://github.com/goplugin/ccip/blob/8f3486ced41a414f724e6b12b1528db80b72346c/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol#L19 nolint:lll.

MessageSentEvent represents `MessageSent(bytes)` event emitted by the MessageTransmitter contract.

MessageTokenID is a unique identifier for a message token data (per chain selector).

Node mirrors RMNHome.sol's Node struct.

SourceChain mirrors RMNHome.sol's SourceChain struct.

SourceTokenDataPayload extracts the nonce and source domain from the USDC message.

StaticConfig mirrors RMNHome.sol's StaticConfig struct.

VersionedConfig mirrors RMNHome.sol's VersionedConfig struct.

ContractAddresses is a map of contract names across all chain selectors and their address.