{ String key, }
-----
Groovy script
  Closable block
    PsiElement({)('{')
    PsiWhiteSpace(' ')
    Parameter list
      <empty list>
    Variable definitions
      Modifiers
        <empty list>
      Type element
        Reference element
          PsiElement(identifier)('String')
      PsiWhiteSpace(' ')
      Variable
        PsiElement(identifier)('key')
      PsiElement(,)(',')
      PsiErrorElement:Identifier expected
        <empty list>
    PsiWhiteSpace(' ')
    PsiElement(})('}')