coerce_outpath_extension
======================================================

.. py:function:: petpal.utils.useful_functions.coerce_outpath_extension(path: str, ext: str) -> str

   Coerce a path to the same absolute path with a provided filetype extension.

   :param path: Path to a file.
   :type path: str
   :param ext: Desired output extension.
   :type ext: str

   :returns: *abs_path_with_extension (str)* -- Absolute path of the input file with the modified extension.

   .. rubric:: Example

   .. code-block:: python

       from petpal.utils.useful_functions import coerce_outpath_extension

       my_path = 'my_file.nii.gz'
       my_csv_file = coerce_outpath_extension(my_path, '.csv')
       print(my_csv_file) # prints '/current/working/directory/my_file.csv'