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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 get_loader(vm_, **kwargs):
    '''
    Returns the information on the loader for a given vm

    :param vm_: name of the domain
    :param connection: libvirt connection URI, overriding defaults
    :param username: username to connect with, overriding defaults
    :param password: password to connect with, overriding defaults

    CLI Example:

    .. code-block:: bash

        salt '*' virt.get_loader <domain>

    .. versionadded:: 2019.2.0
    '''
    conn = __get_conn(**kwargs)
    loader = _get_loader(_get_domain(conn, vm_))
    conn.close()
    return loader