migrate

type MigrationWriter interface {
	// SetEntryBundle stores the provided serialised entry bundle at the location implied by the provided
	// entry bundle index and partial size.
	//
	// Bundles may be set in any order (not just consecutively), and the implementation should integrate
	// them into the local tree in the most efficient way possible.
	//
	// Writes should be idempotent; repeated calls to set the same bundle with the same data should not
	// return an error.
	SetEntryBundle(ctx context.Context, idx uint64, partial uint8, bundle []byte) error
	// AwaitIntegration should block until the local integrated tree has grown to the provided size,
	// and should return the locally calculated root hash derived from the integration of the contents of
	// entry bundles set using SetEntryBundle above.
	AwaitIntegration(ctx context.Context, size uint64) ([]byte, error)
	// IntegratedSize returns the current size of the locally integrated log.
	IntegratedSize(ctx context.Context) (uint64, error)
}