code: def check_R_package(self, package):
          
          test_package = not bool(launch_R_script("{}/R_templates/test_import.R".format(os.path.dirname(os.path.realpath(__file__))),                                      {"{package}": package}, verbose=True))
          return test_package
docs: Execute a subprocess to check the package's availability.
  
          Args:
              package (str): Name of the package to be tested.
  
          Returns:
              bool: `True` if the package is available, `False` otherwise