A sorted_vector_set backed by a small_vector with inline capacity N.
Declared in <folly/container/sorted_vector_types.h>
template<
class T,
size_t N = 1,
class Compare = std::less<T>,
class Allocator = std::allocator<T>,
class GrowthPolicy = void,
class SmallVectorPolicy = void>
using small_sorted_vector_set = sorted_vector_set<T, Compare, Allocator, GrowthPolicy, folly::small_vector<T, N, SmallVectorPolicy>>;