builder

type Builder interface {
	smblock.BuildBlockWithContextChainVM
	// Add adds `tx` to the mempool and clears its dropped status.
	Add(tx *txs.Tx) error
	// Get returns the tx corresponding to `txID` and if it was present
	Get(txID ids.ID) (*txs.Tx, bool)
	// GetDropReason returns why `txID` was dropped
	GetDropReason(txID ids.ID) error
	// WaitForEvent blocks until the mempool has txs that are ready to build into
	// a block.
	WaitForEvent(ctx context.Context) (common.Message, error)

	// BuildBlock can be called to attempt to create a new block
	BuildBlock(context.Context) (snowman.Block, error)

	// PackAllBlockTxs returns an array of all txs that could be packed into a
	// valid block of infinite size. The returned txs are all verified against
	// the preferred state.
	//
	// Note: This function does not call the consensus engine.
	PackAllBlockTxs() ([]*txs.Tx, error)
}