How to use the web3-core-helpers.errors.InvalidConnection function in web3-core-helpers

_this.toCache(payload, result);
                }
                othis.connected = true;
                callback(error, result);
            }
        };
        request.ontimeout = function () {
            othis.connected = false;
            callback(errors.ConnectionTimeout(_this.timeout));
        };
        try {
            request.send(JSON.stringify(payload));
        }
        catch (error) {
            this.connected = false;
            callback(errors.InvalidConnection(this.host));
        }
    };
    HttpProviderCache.prototype.fromCache = function (payload) {

public doTimeout() {
        for (const key in this.responseCallbacks) {
            if (this.responseCallbacks.hasOwnProperty(key)) {
                this.responseCallbacks[key](errors.InvalidConnection('on WS'));
                delete this.responseCallbacks[key];
            }
        }
    }

WsProviderCache.prototype.doTimeout = function () {
        for (var key in this.responseCallbacks) {
            if (this.responseCallbacks.hasOwnProperty(key)) {
                this.responseCallbacks[key](errors.InvalidConnection('on WS'));
                delete this.responseCallbacks[key];
            }
        }
    };
    WsProviderCache.prototype.send = function (payload, callback) {

WebsocketProvider.prototype._timeout = function() {
  for (const key in this.responseCallbacks) {
    if (this.responseCallbacks.hasOwnProperty(key)) {
      this.responseCallbacks[key](errors.InvalidConnection('on WS'));
      delete this.responseCallbacks[key];
    }
  }
};
WebsocketProvider.prototype.send = function(payload, callback) {

WebsocketProvider.prototype._timeout = function() {
    for(var key in this.responseCallbacks) {
        if(this.responseCallbacks.hasOwnProperty(key)){
            this.responseCallbacks[key](errors.InvalidConnection('on WS'));
            delete this.responseCallbacks[key];
        }
    }
};

_this.toCache(payload, result);
                }
                othis.connected = true;
                callback(error, result);
            }
        };
        request.ontimeout = function () {
            othis.connected = false;
            callback(errors.ConnectionTimeout(_this.timeout));
        };
        try {
            request.send(JSON.stringify(payload));
        }
        catch (error) {
            this.connected = false;
            callback(errors.InvalidConnection(this.host));
        }
    };
    /**

WebsocketProvider.prototype._timeout = function() {
    for(var key in this.responseCallbacks) {
        if(this.responseCallbacks.hasOwnProperty(key)){
            this.responseCallbacks[key](errors.InvalidConnection('on WS'));
            delete this.responseCallbacks[key];
        }
    }
};

_this.connected = true;
            callback(error, result);
        }
    };

    request.ontimeout = function() {
        _this.connected = false;
        callback(errors.ConnectionTimeout(this.timeout));
    };

    try {
        request.send(JSON.stringify(payload));
    } catch(error) {
        this.connected = false;
        callback(errors.InvalidConnection(this.host));
    }
};

public doTimeout() {
        for (const key in this.responseCallbacks) {
            if (this.responseCallbacks.hasOwnProperty(key)) {
                this.responseCallbacks[key](errors.InvalidConnection('on WS'));
                delete this.responseCallbacks[key];
            }
        }
    }