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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 parse_implicit_response(uri, state=None, scope=None):
 """Parse the implicit token response URI into a dict. If the resource owner grants the access request, the authorization server issues an access token and delivers it to the client by adding the following parameters to the fragment component of the redirection URI using the ``application/x-www-form-urlencoded`` format: **access_token** REQUIRED. The access token issued by the authorization server. **token_type** REQUIRED. The type of the token issued as described in Section 7.1. Value is case insensitive. **expires_in** RECOMMENDED. The lifetime in seconds of the access token. For example, the value "3600" denotes that the access token will expire in one hour from the time the response was generated. If omitted, the authorization server SHOULD provide the expiration time via other means or document the default value. **scope** OPTIONAL, if identical to the scope requested by the client, otherwise REQUIRED. The scope of the access token as described by Section 3.3. **state** REQUIRED if the "state" parameter was present in the client authorization request. The exact value received from the client. :param uri: :param state: :param scope: Similar to the authorization code response, but with a full token provided in the URL fragment: .. code-block:: http HTTP/1.1 302 Found Location: http://example.com/cb#access_token=2YotnFZFEjr1zCsicMWpAA &state=xyz&token_type=example&expires_in=3600 """

    if not is_secure_transport(uri):
        raise InsecureTransportError()

    fragment = urlparse.urlparse(uri).fragment
    params = dict(urlparse.parse_qsl(fragment, keep_blank_values=True))

    for key in ('expires_in',):
        if key in params:  # cast things to int
            params[key] = int(params[key])

    if 'scope' in params:
        params['scope'] = scope_to_list(params['scope'])

    if 'expires_in' in params:
        params['expires_at'] = time.time() + int(params['expires_in'])

    if state and params.get('state', None) != state:
        raise ValueError("Mismatching or missing state in params.")

    params = OAuth2Token(params, old_scope=scope)
    validate_token_parameters(params)
    return params