Slot: dictionary_key
When the derived value is a list of objects, the slot whose value is used as the key to index them into a dictionary.
URI: [linkmlmap:slot/dictionary_key](https://w3id.org/linkml/transformer/slot/dictionary_key)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [SlotDerivation](../classes/SlotDerivation.md) | A specification of how to derive the value of a target slot from a source slo... | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [String](../types/String.md) |
| Domain Of | [SlotDerivation](../classes/SlotDerivation.md) |
### Slot Characteristics
| Property | Value |
| --- | --- |
| Owner | [SlotDerivation](../classes/SlotDerivation.md) |
## Identifier and Mapping Information
### Schema Source
* from schema: https://w3id.org/linkml/transformer
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | linkmlmap:dictionary_key |
| native | linkmlmap:dictionary_key |
## LinkML Source
name: dictionary_key
description: When the derived value is a list of objects, the slot whose value is
used as the key to index them into a dictionary.
from_schema: https://w3id.org/linkml/transformer
rank: 1000
owner: SlotDerivation
domain_of:
- SlotDerivation
range: string