Confused in the initalization function.

[varshney565]

    function initialize(address _admin, address _polygonZkEVMBridge, address _counterpartContract, uint32 _counterpartNetwork, address _originTokenAddress, address _wrappedTokenAddress)
        public
        virtual
        initializer
    {
        // Inits
        __AccessControlDefaultAdminRules_init(3 days, _admin);
        __UUPSUpgradeable_init();
        __Pausable_init();
        __PolygonERC20BridgeBase_init(_polygonZkEVMBridge, _counterpartContract, _counterpartNetwork);

        // Set storage
        L2EscrowStorage storage $ = _getL2EscrowStorage();
        $.originTokenAddress = _originTokenAddress;
        $.wrappedTokenAddress = IL2Token(_wrappedTokenAddress);
    }

In above code snippet of L1escrow contract what does counterpartContractaddress, origintokenAdderess, countpartNetwork means ?