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    Refactor fetch handler (#21264) · 691ced87
    Dong Daxiang 提交于
    * fix fetch handler problem and refactor
    when a user define FetchHandler class, he or she should initialize a handler
    with variable dict. the key of a variable dict is a user defined name,
    the value of a variable dict is a Varaible generated from python API.
    
    For each fetching, a user should implement handler function in which
    fetched_result_dict will be available and the user can access the fetched value
    with user defined keys.
    691ced87
executor.cc 19.4 KB