code: def generate_dummy_code_pybind11(nclasses=10):
      decl = ""
      bindings = ""
  
      for cl in range(nclasses):
          decl += f"class cl{cl:03};\n"
      decl += "\n"
  
      for cl in range(nclasses):
          decl += f"class {cl:03} {{\n"
          decl += "public:\n"
          bindings += f'    py::class_<cl{cl:03}>(m, "cl{cl:03}")\n'
          for fn in range(nfns):
              ret = random.randint(0, nclasses - 1)
              params = [
                  random.randint(0, nclasses - 1) for i in range(nargs)
              ]
              decl += f"    cl{ret:03} *fn_{fn:03}("
              decl += ", ".join(f"cl{p:03} *" for p in params)
              decl += ");\n"
              bindings += f'        .def("fn_{fn:03}", &cl{cl:03}::fn_{fn:03})\n'
          decl += "};\n\n"
          bindings += "        ;\n"
  
      result = "#include <pybind11/pybind11.h>\n\n"
      result += "namespace py = pybind11;\n\n"
      result += decl + "\n"
      result += "PYBIND11_MODULE(example, m) {\n"
      result += bindings
      result += "}"
      return result
  
imports: import datetime
  import os
  import random
label_desc: Use image node_id 1 for calling a global function with example usage: generate_dummy_code_pybind11(nclasses) and returns: result