```
public final class KeyValuePairs
extends Object
```
Key/Value pairs used to build JSON. This behaves like a Map where you can add element, but duplicate elements make the values an array. It also supports adding KeyValuePairs as value, in which case an object is created in the resulting JSON.

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(String key, Object value)`
`void`	`add(String key, Object... values)`
`boolean`	`isEmpty()`
`void`	`serializeToContentBuilder(org.elasticsearch.common.xcontent.XContentBuilder builder)`	Serializes the object to a sequence of fields.
`int`	`size()`
`String`	`toString()`

public void add(String key,
                Object value)

public void add(String key,
                Object... values)

public void serializeToContentBuilder(org.elasticsearch.common.xcontent.XContentBuilder builder)
                               throws IOException

Serializes the object to a sequence of fields. The empty object will be serialized as null.

Class KeyValuePairs