> For the complete documentation index, see [llms.txt](https://docs.atfinity.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.atfinity.io/rule-language/operators/dictionary-operators/pick.md).

# pick

{% hint style="info" %}
**New in Atfinity 17.**
{% endhint %}

### Description

`pick` returns a new dictionary containing only the selected keys of the dictionary it is called on. The argument has the same shape as the argument to [`to_dict`](/rule-language/operators/dictionary-operators/to_dict.md): a dictionary literal whose keys are the names to pick from the source.

For each entry:

* If only a key is given (using the [dictionary shorthand](/rule-language/operators/dictionary-operators/shorthand.md), e.g. `first_name`), the resulting dictionary uses the same key name.
* If a value is given (e.g. `first_name: 'givenName'`), that value is used as the key in the resulting dictionary (i.e. the key is renamed).

Keys that are not present in the source dictionary are skipped and do not appear in the result.

### Examples

```
{'first_name': 'Thorben', 'last_name': 'Croisé', 'age': 42}.pick({first_name, last_name})
// => {'first_name': 'Thorben', 'last_name': 'Croisé'}
```

Renaming all picked keys:

```
some_dict.pick({first_name: 'givenName', last_name: 'familyName'})
// => {'givenName': '...', 'familyName': '...'}
```

Mixing shorthand and explicit renames:

```
some_dict.pick({first_name, last_name: 'familyName'})
```


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