@spec exception(opts :: Keyword.t()) :: %GuardedStruct.Errors.Validation{
  __exception__: true,
  action: term(),
  bread_crumbs: term(),
  child_errors: term(),
  class: term(),
  field: term(),
  hint: term(),
  message: term(),
  path: term(),
  splode: term(),
  stacktrace: term(),
  vars: term()
}