code: def is_rooted(path):
      """Tests if a path is rooted."""
      return path and path[0] == "/"
  
imports: import os.path
  from utility import to_seq
  from glob import glob
  from b2.util import bjam_signature
label_desc: Use image node_id 7 for calling a global function with example usage: is_rooted(path) and returns: unknown