def binary_encode_any_high_ascii_in_hash(hash)
      Hash[hash.map { |key, value| [key, binary_encode_any_high_ascii(value)] }]
    end
def binary_encode_any_high_ascii_in_hash(hash)
      Hash[hash.map { |key, value| [key, binary_encode_any_high_ascii(value)] }]
    end
Ensures all values of the given `hash` are BINARY-encoded, if necessary.