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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_email(sciper):
 """ Return email of user """

    attribute = 'mail'
    response = LDAP_search(
        pattern_search='(uniqueIdentifier={})'.format(sciper),
        attribute=attribute
    )
    try:
        email = get_attribute(response, attribute)
    except Exception:
        raise EpflLdapException("No email address corresponds to sciper {}".format(sciper))
    return email