Method take_first

simcore/framework/src/cli/cli.hpp:3459–3463

Set the multi option policy to take last

  /// Set the multi option policy to take last
  CRTP *take_first() {
    auto self = static_cast<CRTP *>(this);
    self->multi_option_policy(MultiOptionPolicy::TakeFirst);
    return self;
  }

  /// Set the multi option policy to take all arguments
  CRTP *take_all() {