FileMemoryCache.swift

final class FileMemoryCache {
  init(byteCountLimit: Int)
  /// Returns data for the byte range
  func data(for byteRange: CountableRange<Int>) -> DispatchData?
  /// Caches data for the byte range and evicts older data when exceeding byte count limit
  func set(_ data: DispatchData, byteRange: CountableRange<Int>)
  /// Removes everything from the cache
  func removeAll()
}