proposer

type Proposer interface {
	ProposalInit() (types.ProposalInit, error)

	// Blocks until BlockInfo is ready, then returns it.
	BlockInfo(ctx context.Context) (types.BlockInfo, bool)

	// Returns a channel that emits transaction batches (can emit multiple times).
	Txns(ctx context.Context) <-chan []types.Transaction

	// Blocks until the proposal commitment is ready or context is cancelled.
	ProposalCommitment() (types.ProposalCommitment, error)

	ProposalFin() (types.ProposalFin, error)
}