module JSON

def fast_unparse(...)
  if RUBY_VERSION >= "3.0"
    warn "JSON.fast_unparse is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1, category: :deprecated
  else
    warn "JSON.fast_unparse is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1
  end
  generate(...)
end