Class implementing the lazy loading of a mesh if the dictionary is
queried for it.

def __getitem__(self, item):

Class to handle dual indexing by either acronym or id.
​
Parameters
----------
mesh_path : str or Path object
    path to folder containing all meshes .obj files

def __init__(self, structures_list):

def __getitem__(self, item):

Core implementation of the class support for different indexing.
​
Parameters
​
----------
​
item :
​
Returns
​
-------

def __repr__(self):

String representation of the class, print all regions names