PyFile:FStringTerminatedByLineBreakInNestedStringLiteralInFormatPart.py
  PyAssignmentStatement
    PyTargetExpression: s
      PsiElement(Py:IDENTIFIER)('s')
    PsiWhiteSpace(' ')
    PsiElement(Py:EQ)('=')
    PsiWhiteSpace(' ')
    PyStringLiteralExpression: {f'''{foo:{'\
'}}'''}
      PyFormattedStringElement
        PsiElement(Py:FSTRING_START)('f"')
        PyFStringFragment
          PsiElement(Py:FSTRING_FRAGMENT_START)('{')
          PyStringLiteralExpression: {foo:{'\
'}}
            PyFormattedStringElement
              PsiElement(Py:FSTRING_START)('f'''')
              PyFStringFragment
                PsiElement(Py:FSTRING_FRAGMENT_START)('{')
                PyReferenceExpression: foo
                  PsiElement(Py:IDENTIFIER)('foo')
                PyFStringFragmentFormatPart
                  PsiElement(Py:FSTRING_FRAGMENT_FORMAT_START)(':')
                  PyFStringFragment
                    PsiElement(Py:FSTRING_FRAGMENT_START)('{')
                    PyStringLiteralExpression: 

                      PsiElement(Py:SINGLE_QUOTED_STRING)(''\\n'')
                    PsiElement(Py:FSTRING_FRAGMENT_END)('}')
                PsiElement(Py:FSTRING_FRAGMENT_END)('}')
              PsiElement(Py:FSTRING_END)(''''')
          PsiElement(Py:FSTRING_FRAGMENT_END)('}')
        PsiElement(Py:FSTRING_END)('"')