Gem::Commands::PushCommand#validate_attestation_json

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/commands/push_command.rb, line 219
def validate_attestation_json(data, source)
  require "json"

  parsed = begin
    JSON.parse(data)
  rescue JSON::ParserError => e
    raise Gem::Exception, "Attestation #{source} is not valid JSON: #{e.message}"
  end
  raise Gem::Exception, "Attestation #{source} is not a JSON object" unless parsed.is_a?(Hash)
  data
end