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-rw-r--r--dataset/reader.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/dataset/reader.go b/dataset/reader.go
index 6458010..31a25b8 100644
--- a/dataset/reader.go
+++ b/dataset/reader.go
@@ -4,5 +4,6 @@ import "iter"
type Reader interface {
Texts() iter.Seq2[int, string]
+ Num() (int, error)
Err() error
}