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title: Values (dw::util::Values)
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# Values (dw::util::Values)

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

This utility module simplifies changes to values.

The module is included with Mule runtime. To use it, you must import it into your DataWeave code,
for example, by adding the line `import * from dw::util::Values` to the header of your script.

_Introduced in DataWeave 2.2.2. Supported by Mule 4.2.2 and later._

## Functions

<table><colgroup><col> <col></colgroup><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td><p><a href="https://docs.mulesoft.com/dataweave/2.3/dw-values-functions-attr">attr</a></p></td><td><p>This function creates a <code>PathElement</code> to use for selecting an XML attribute and populates the type’s <code>selector</code> field with the given string.</p></td></tr><tr><td><p><a href="https://docs.mulesoft.com/dataweave/2.3/dw-values-functions-field">field</a></p></td><td><p>This function creates a <code>PathElement</code> data type to use for selecting an <em>object field</em> and populates the type’s <code>selector</code> field with the given string.</p></td></tr><tr><td><p><a href="https://docs.mulesoft.com/dataweave/2.3/dw-values-functions-index">index</a></p></td><td><p>This function creates a <code>PathElement</code> data type to use for selecting an <em>array element</em> and populates the type’s <code>selector</code> field with the specified index.</p></td></tr><tr><td><p><a href="https://docs.mulesoft.com/dataweave/2.3/dw-values-functions-mask">mask</a></p></td><td><p>This <code>mask</code> function replaces all <em>simple</em> elements that match the specified criteria.</p></td></tr><tr><td><p><a href="https://docs.mulesoft.com/dataweave/2.3/dw-values-functions-update">update</a></p></td><td><p>This <code>update</code> function updates a field in an object with the specified string value.</p></td></tr></tbody></table>