Use specific branch when developing on local composer package

composer.json

{
    "repositories": [
        {
            "type": "path",
            "url": "../my-local-dev-package",
            "options": {
                "symlink": true
            }
        },
    ],
    "require": {
        "my/package": "@dev", /* use master branch */
        "my/package": "1.x-dev" /* or use for example 1.x branch instead of master */
    },
}