package database import "context" type SeqTime struct { Seq int64 Time int64 } type SeqConversation interface { Malloc(ctx context.Context, conversationID string, size int64) (int64, error) GetMaxSeq(ctx context.Context, conversationID string) (int64, error) SetMaxSeq(ctx context.Context, conversationID string, seq int64) error GetMinSeq(ctx context.Context, conversationID string) (int64, error) SetMinSeq(ctx context.Context, conversationID string, seq int64) error }