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vendor/go.mongodb.org/mongo-driver/mongo/batch_cursor.go

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+package mongo
+
+import (
+	"context"
+
+	"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
+	"go.mongodb.org/mongo-driver/x/mongo/driver"
+)
+
+// batchCursor is the interface implemented by types that can provide batches of document results.
+// The Cursor type is built on top of this type.
+type batchCursor interface {
+	// ID returns the ID of the cursor.
+	ID() int64
+
+	// Next returns true if there is a batch available.
+	Next(context.Context) bool
+
+	// Batch will return a DocumentSequence for the current batch of documents. The returned
+	// DocumentSequence is only valid until the next call to Next or Close.
+	Batch() *bsoncore.DocumentSequence
+
+	// Server returns a pointer to the cursor's server.
+	Server() driver.Server
+
+	// Err returns the last error encountered.
+	Err() error
+
+	// Close closes the cursor.
+	Close(context.Context) error
+}
+
+// changeStreamCursor is the interface implemented by batch cursors that also provide the functionality for retrieving
+// a postBatchResumeToken from commands and allows for the cursor to be killed rather than closed
+type changeStreamCursor interface {
+	batchCursor
+	// PostBatchResumeToken returns the latest seen post batch resume token.
+	PostBatchResumeToken() bsoncore.Document
+
+	// KillCursor kills cursor on server without closing batch cursor
+	KillCursor(context.Context) error
+}