> ## Documentation Index
> Fetch the complete documentation index at: https://docs.symbolica.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Templating

export const TypeScript = props => {
  const getLang = () => {
    let lang = null;
    try {
      const raw = window.localStorage.getItem('code');
      lang = raw;
      try {
        lang = JSON.parse(raw);
      } catch (_err) {}
    } catch (_err) {}
    return (lang || '').toLowerCase();
  };
  const lang = getLang();
  return <span class="when-lang when-typescript" style={{
    display: lang.includes('typescript') ? 'inline' : 'none'
  }}>{props.children}</span>;
};

export const Python = props => {
  let lang = null;
  try {
    const raw = window.localStorage.getItem('code');
    lang = raw;
    try {
      lang = JSON.parse(raw);
    } catch (_err) {}
  } catch (_err) {}
  lang = (lang || 'Python').toLowerCase();
  if (!['python', 'typescript'].some(l => lang.includes(l))) {
    lang = 'python';
  }
  return <span class="when-lang when-python" style={{
    display: lang.includes('python') ? 'inline' : 'none'
  }}>{props.children}</span>;
};

### `template`

A function for creating an agent or agentic function `system` and `userPrompt` arguments using template variables.
For a full list of all available template variables, see [here](/prompting/agent#templating-variables).

<Warning>
  Note that `template` is not supported for an agent `premise`.
</Warning>

```typescript theme={null}
const Template = new Proxy(TemplateClass, {
    construct(target, args: [string])
})
export Template as template;
```

**Parameters**

<ParamField body="args" type="string[]">
  The prompt with templating variables included.
</ParamField>