code: def ast_to_sympy(expr):
      '''Converts an AST expression to a sympy expression (STUPID)'''
      from dolang import to_source
      s = to_source(expr)
      not_to_be_treated_as_functions = ['alpha','beta', 'gamma','zeta', 'Chi']
      d = {v: sympy.Symbol(v) for v in not_to_be_treated_as_functions}
      return sympy.sympify(s, locals=df ast_to_sympy(expr):
      '''Converts an AST expression to a sympy expression (STUPID)'''
      from dolang import to_source
      s = to_source(expr)
      not_to_be_treated_as_functions = ['alpha','beta', 'gamma','zeta', 'Chi']
      d = {v: sympy.Symbol(v) for v in not_to_be_treated_as_functions}
      return sympy.sympify(s, locals=d)
docs: Converts an AST expression to a sympy expression (STUPID)