**The search strategy contains a large number of module, mainly complete the search space setting, build super model, budgets, scores, latency and so on **
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Strategy Class
build_xxx
: Build sub modules from a cfg dict.budgets
: A property method to get the budgets value setting in cfg.do_compute_nas_score
: Compute a score of a network with specified method.is_satify_budget
: Determine if a network meets budget. If dissatisfied, we will drop it.get_info_for_evolution
: Build a new model from structure info and generate additional information, such as flops/score ans so on.