def METHOD_NAME(user_api_client, customer_user, channel_PLN):
    variables = {
        "password": "password",
        "new_email": "new_email@example.com",
        "redirect_url": "http://www.example.com",
        "channel": channel_PLN.slug,
    }
    response = user_api_client.post_graphql(REQUEST_EMAIL_CHANGE_QUERY, variables)
    content = get_graphql_content(response)
    data = content["data"]["requestEmailChange"]
    assert data["user"]["email"] == customer_user.email