code: def test_tags_xml_prefix():
      with rasterio.open("tests/data/RGB.byte.rpc.vrt") as src:
          md = src.tags(ns="xml:VRT")
          assert "xml:VRT" in md
          assert md.get("xml:VRT").startswith("<VRTDataset")
  
file_path: rasterio/tests/test_tags.py
imports: import logging
  import sys
  import pytest
  import rasterio
label_desc: Use image node_id 5 for calling a global function with example usage: test_tags_xml_prefix() without return types