class ElasticAPM::Spies::S3Spy

def self.formatted_op_name(operation_name)
  if @@formatted_op_names[operation_name]
    return @@formatted_op_names[operation_name]
  end
  MUTEX.synchronize do
    if @@formatted_op_names[operation_name]
      return @@formatted_op_names[operation_name]
    end
    @@formatted_op_names[operation_name] =
      operation_name.to_s.split('_').collect(&:capitalize).join
  end
  @@formatted_op_names[operation_name]
end