code: def valid_vsi(vsi):
      """Ensures all parts of our vsi path are valid schemes."""
      return all(p in SCHEMES for p in vsi.split("+"))
  
imports: import sys
  import re
  from urllib.parse import urlparse
label_desc: Use image node_id 1 for calling a global function with example usage: valid_vsi(vsi) and returns: all