# Metadata Class

> `Metadata` is a public class that represents a key-value pair for storing document metadata.

`Metadata` is a public class that represents a key-value pair for storing document metadata.

## Definition

* Namespace: `UiPath.DocumentProcessing.Contracts.Dom`
* Assembly: `UiPath.DocumentProcessing.Contracts`

## Description

A public class that represents a key-value pair for storing document metadata.

## Members

#### Constructor

`Metadata.Metadata()` - The public default constructor.

#### Properties

* `Key` `string` - a unique identifier
* `Value` `string` - the value to be stored