<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://symfony.com/schema/routing
        https://symfony.com/schema/routing/routing-1.0.xsd">
    <when env="some-env">
        <route id="a" path="/a2" />
        <route id="b" path="/b" />
    </when>

    <when env="some-other-env">
        <route id="a" path="/a3" />
        <route id="c" path="/c" />
    </when>

    <route id="a" path="/a1" />
</routes>
