code: def bijective(keys):
      ndims = len(keys[0])
      if ndims <= 1:
          return True
      for idx in range(ndims):
          getter = itemgetter(*(i for i in range(ndims) if i != idx))
          store = []
          for key in keys:
              subkey = getter(key)
              if subkey in store:
                  return False
              store.append(subkey)
      return True
  
file_path: holoviews/holoviews/core/traversal.py
imports: from collections import defaultdict
  from operator import itemgetter
  from .dimension import Dimension
  from .util import merge_dimensions
label_desc: Use image node_id 4 for calling a global function with example usage: bijective(keys) and returns: True, True, False