Created by: wangkuiyi

def __bootstrap__():
    """
    Bootstrap function for this module. It will dynamic create all op creation
    methods in runtime.
    """
    for op_proto in get_all_op_protos():
        func = create_op_creation_method(op_proto)
        func.__name__ = str(op_proto.type)
        setattr(op_creations, func.__name__, func)

This introduces extra complexity compared with

core.operator("ReLU", input={...}, output={...})

The former approach would create confusion for our users -- users might see a call in an example program like fc(...) but s/he cannot grep the codebase to find the definition of function fc.