class_docstr: Convert expressions to LLVM IR
code: def _print_Symbol(self, s):
      val = self.tmp_var.get(s)
      if not val:
          # look up parameter with name s
          val = self.func_arg_map.get(s)
      if not val:
          raise LookupError("Symbol not found: %s" % s)
      return val
  
imports: import ctypes
  from sympy.external import import_module
  from sympy.printing.printer import Printer
  from sympy.core.singleton import S
  from sympy.tensor.indexed import IndexedBase
  from sympy.utilities.decorator import doctest_depends_on
label_desc: Use image node_id 5 for calling the LLVMJitPrinter obj's underlying member method code with example usage: obj._print_Symbol(s) and returns: val