code: def concatenate_paths(paths):
      """
      concatenate list of paths into a single path.
      """
  
      vertices = []
      codes = []
      for p in paths:
          p = make_path_regular(p)
          vertices.append(p.vertices)
          codes.append(p.codes)
  
      _path = Path(np.concatenate(vertices), np.concatenate(codes))
      return _path
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import numpy
  from matplotlib.path import Path
  from operator import xor
  import warnings
label_desc: Use image node_id 16 for calling a global function with example usage: concatenate_paths(paths) and returns: _path