def open(self, sessiondata=None):
        if isinstance(sessiondata, sessionData):
            self.sessiondata = sessiondata
        if self.sessiondata:
            self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
            self.socket.connect((self.sessiondata.agent, self.sessiondata.port))
:returns: the adjacency matrix in the native sparse format.
dataset/ETHPy150Open kdart/pycopia/SNMP/pycopia/SNMP/SNMP.py/Session.open--crossover with--dataset/ETHPy150Open charanpald/APGL/apgl/graph/SparseGraph.py/SparseGraph.nativeAdjacencyMatrix