XCM emulator cannot handle networks defined on other crates

[xlc]

I want to reuse the networks defined in integration-tests-common in our own tests but getting this

error[E0117]: only traits defined in the current crate can be implemented for types defined outside of the crate
   --> runtime/integration-tests/src/relaychain/kusama_test_net.rs:99:1
    |
99  | / decl_test_networks! {
100 | |     pub struct TestNet {
101 | |         relay_chain = KusamaNet,
    | |                       --------- `integration_tests_common::Kusama` is not defined in the current crate
102 | |         parachains = vec![
...   |
109 | |     }
110 | | }
    | |_^ impl doesn't use only types from inside the current crate

I want to avoid duplicate the networks defs.