Import a python object given an importable string and return it.
Parameters
----------
importable : `str`
String containing dot-separated path of a Python class, module,
or member function.
Returns
-------
type : `type`
Type object. Either a module or class or a function.
Raises
------
TypeError
``importable`` is not a `str`.
ModuleNotFoundError
No module in the supplied import string could be found.
ImportError
``importable`` is found but can not be imported or the requested
item could not be retrieved from the imported module.
Definition at line 28 of file doImport.py.