# Base64 ships no signatures (a default gem), so this declares the one
# method pro-tacts calls: the strict decoder, which raises on any
# character outside the alphabet rather than skipping it — the refusal
# is what keeps a URI-form PHOTO from decoding as one.
#
# Written against base64 0.3.0 (lib/base64.rb).
module Base64
  def self.strict_decode64: (String str) -> String
end