docs: def _initstr(modname, imports, from_imports, inject_execstr, withheader=True):
      """ Calls the other string makers """
      header         = _make_module_header() if withheader else ''
      import_str     = _make_imports_str(imports, modname)
      fromimport_str = _make_fromimport_str(from_imports, modname)
      initstr = '\n'.join([str_ for str_ in [
          header,
          import_str,
          fromimport_str,
          inject_execstr,
      ] if len(str_) > 0])
      return initstr