txt: ## vowed.md
  class X::Promise::Vowed
  
  Error due to directly trying to keep/break a vowed promise.
  
  ```raku
  class X::Promise::Vowed is Exception { }
  ```
  
  This exception is thrown when code tries to keep/break an already vowed promise without going through the corresponding `Vow` object.
  
  # [Methods](#class_X::Promise::Vowed "go to top of document")[§](#Methods "direct link")
  
  ## [method promise](#class_X::Promise::Vowed "go to top of document")[§](#method_promise "direct link")
  
  ```raku
  method promise()
  ```
  
  Returns the vowed Promise.
  