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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 acis_request(method, params):
 """Request data from the ACIS Web Services API. Makes a request from the ACIS Web Services API for data based on a given method (StnMeta,StnData,MultiStnData,GridData,General) and parameters string. Information about the parameters can be obtained at: http://www.rcc-acis.org/docs_webservices.html If a connection to the API fails, then it will raise an exception. Some bad calls will also return empty dictionaries. ACIS Web Services is a distributed system! A call to the main URL can be delivered to any climate center running a public instance of the service. This makes the calls efficient, but also occasionaly results in failed calls when a server you are directed to is having problems. Generally, reconnecting after waiting a few seconds will resolve a problem. If problems are persistent, contact ACIS developers at the High Plains Regional Climate Center or Northeast Regional Climate Center who will look into server issues. Parameters method : str The Web Services request method (StnMeta, StnData, MultiStnData, GridData, General) params : dict A JSON array of parameters (See Web Services API) Returns ------- A dictionary of data based on the JSON parameters Raises ------ :class: `ACIS_API_Exception` When the API is unable to establish a connection or returns unparsable data. """

    base_url = 'http://data.rcc-acis.org/'  # ACIS Web API URL

    timeout = 300 if method == 'MultiStnData' else 60

    try:
        response = session_manager.create_session().post(base_url + method, json=params,
                                                         timeout=timeout)
        return response.json()
    except requests.exceptions.Timeout:
        raise AcisApiException('Connection Timeout')
    except requests.exceptions.TooManyRedirects:
        raise AcisApiException('Bad URL. Check your ACIS connection method string.')
    except ValueError:
        raise AcisApiException('No data returned! The ACIS parameter dictionary'
                               'may be incorrectly formatted')