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#pragma once
#include <mbgl/util/immutable.hpp>
#include <mbgl/style/layer.hpp>
#include <string>
#include <vector>
#include <set>
namespace mbgl {
// An array of font names
using FontStack = std::vector<std::string>;
using FontStackHash = std::size_t;
std::string fontStackToString(const FontStack&);
struct FontStackHasher {
FontStackHash operator()(const FontStack&) const;
};
// Statically evaluate layer properties to determine what font stacks are used.
std::set<FontStack> fontStacks(const std::vector<Immutable<style::Layer::Impl>>&);
} // namespace mbgl
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