Branch API
----------

The ``Branch`` constructor takes fields from a file with
deposit data as an argument.

.. code:: python

    @property
    def cls(self)
    '''
    returns the class of the financial
    institution the branch belongs to
    '''

    @property
    def label(self)
    '''
    get the label for the branch
    '''

    @property
    def deposits(self)
    '''
    get the deposits at the branch
    '''