folly/folly/python/expected.pxd

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cdef extern from "folly/Expected.h" namespace "folly" nogil:
    cdef cppclass cExpected "folly::Expected"[T, E]:
        cExpected(T&& val)
        bint hasValue() const
        bint hasError() const
        T value()
        E error()
        cExpected operator bool() const