custom$$
The customs$$ allows you to use a custom strategy declared by using browser.addLocatorStrategy
Usage
$(selector).custom$$(strategyName, strategyArguments)
Parameters
| Name | Type | Details | 
|---|---|---|
| strategyName | String | |
| strategyArguments | Any | 
Example
it('should get all the plugin wrapper buttons', () => {
    browser.url('https://webdriver.io')
    browser.addLocatorStrategy('myStrat', (selector) => {
        return document.querySelectorAll(selector)
    })
    const pluginRowBlock = browser.custom$('myStrat', '.pluginRowBlock')
    const pluginWrapper = pluginRowBlock.custom$$('myStrat', '.pluginWrapper')
    console.log(pluginWrapper.length) // 4
})