PyFile:FStringBackslashInsideMultilineExpression.py
  PyAssignmentStatement
    PyTargetExpression: s
      PsiElement(Py:IDENTIFIER)('s')
    PsiWhiteSpace(' ')
    PsiElement(Py:EQ)('=')
    PsiWhiteSpace(' ')
    PyStringLiteralExpression: { 1 + \
2}
      PyFormattedStringElement
        PsiElement(Py:FSTRING_START)('f"""')
        PyFStringFragment
          PsiElement(Py:FSTRING_FRAGMENT_START)('{')
          PsiWhiteSpace(' ')
          PyBinaryExpression
            PyNumericLiteralExpression
              PsiElement(Py:INTEGER_LITERAL)('1')
            PsiWhiteSpace(' ')
            PsiElement(Py:PLUS)('+')
            PsiWhiteSpace(' \')
            PsiWhiteSpace('\n')
            PyNumericLiteralExpression
              PsiElement(Py:INTEGER_LITERAL)('2')
          PsiElement(Py:FSTRING_FRAGMENT_END)('}')
        PsiElement(Py:FSTRING_END)('"""')