Fix build

Signed-off-by: Xuanwo <github@xuanwo.io>

core/src/types/operator/blocking_operator.rs

@@ -330,7 +330,7 @@ impl BlockingOperator {
     /// # }
     /// ```
     pub fn read(&self, path: &str) -> Result<Vec<u8>> {
-        self.range _read(path, ..)
+        self.range_read(path, ..)
     }
 
     /// Read the specified range of path into a bytes.