def compiler(self, compiler_name):
    '\n        Returns the SQLCompiler class corresponding to the given name,\n        in the namespace corresponding to the `compiler_module` attribute\n        on this backend.\n        '
    if (compiler_name not in self._cache):
        self._cache[compiler_name] = getattr(import_module(self.compiler_module), compiler_name)
    return self._cache[compiler_name]
Returns the SQLCompiler class corresponding to the given name,
in the namespace corresponding to the `compiler_module` attribute
on this backend.
def compiler(self, compiler_name):
    '\n        Returns the SQLCompiler class corresponding to the given name,\n        in the namespace corresponding to the `compiler_module` attribute\n        on this backend.\n        '
    if (compiler_name not in self._cache):
        self._cache[compiler_name] = getattr(import_module(self.compiler_module), compiler_name)
    return self._cache[compiler_name]