I want to rewrite method `openVariableChooser` in variables js called somewhere in Editor magento. But i don't know how to do that without affect to other module
<br/>File variables location in Magento_Variable/variables.js
<br/>What i have done is define my custom js over original. 

    "paths": {
        "Magento_Variable/variables": "My_Extension/js/custom_variables"
    },