Function push_scope 

pub fn push_scope<'a>(
    host: &'a NemoRelayNativeHostApiV1,
    name: &str,
    scope_type: NemoRelayNativeScopeType,
    data: Option<&Json>,
    metadata: Option<&Json>,
    input: Option<&Json>,
) -> Result<ScopeHandle<'a>>

Pushes a scope and emits its start event.