Params Smart Contract

A contract holding three structs:

/// @notice A struct holding the depths of the merkle trees
struct TreeDepths {
  uint8 intStateTreeDepth;
  uint8 messageTreeSubDepth;
  uint8 messageTreeDepth;
  uint8 voteOptionTreeDepth;
}

/// @notice A struct holding the max values for the poll
struct MaxValues {
  uint256 maxMessages;
  uint256 maxVoteOptions;
}

/// @notice A struct holding the external contracts
/// that are to be passed to a Poll contract on
/// deployment
struct ExtContracts {
  IMACI maci;
  AccQueue messageAq;
}

Struct parameters are used to avoid stack too deep errors in the other contracts.