[O3 Framework](../API.md) / FetchHeaders

# Interface: FetchHeaders

Defined in: [packages/framework/esm-api/src/openmrs-fetch.ts:331](https://github.com/openmrs/openmrs-esm-core/blob/main/packages/framework/esm-api/src/openmrs-fetch.ts#L331)

## Indexable

\[`key`: `string`\]: `null` \| `string`