Match a repeating number of elements.

template<
    class Rule>
constexpr implementation-defined
range_rule(
    Rule next,
    std::size_t N = 0,
    std::size_t M = std::size_t(-1));
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template<
    class Rule1,
    class Rule2>
constexpr implementation-defined
range_rule(
    Rule1 first,
    Rule2 next,
    std::size_t N = 0,
    std::size_t M = std::size_t(-1));
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