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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _mk_client():
    '''
    Create a file client and add it to the context.

    Each file client needs to correspond to a unique copy
    of the opts dictionary, therefore it's hashed by the
    id of the __opts__ dict
    '''
    if 'cp.fileclient_{0}'.format(id(__opts__)) not in __context__:
        __context__['cp.fileclient_{0}'.format(id(__opts__))] = \
                salt.fileclient.get_file_client(__opts__)