docstr: Make a list of size 2**n + 1 where an entry is a vertex
  incidence, each list element contains a list of indexes
  corresponding to that entries neighbours
code: def graph_map(self):
      """Make a list of size 2**n + 1 where an entry is a vertex
      incidence, each list element contains a list of indexes
      corresponding to that entries neighbours"""
  
      self.graph = [[v2.index for v2 in v.nn] for v in self.C0()]
  
imports: import numpy
  import copy
label_desc: Use image node_id 8 for calling the Complex obj's underlying member method code with example usage: obj.graph_map() without return types