## prepareTrustline

`prepareTrustline(address: string, trustline: object, instructions: object): Promise<object>`

Prepare a trustline transaction. The prepared transaction must subsequently be [signed](#sign) and [submitted](#submit).

### Parameters

<%- renderSchema("input/prepare-trustline.json") %>

### Return Value

This method returns a promise that resolves with an object with the following structure:

<aside class="notice">
All "prepare*" methods have the same return type.
</aside>

<%- renderSchema("output/prepare.json") %>

### Example

```javascript
const address = 'r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59';
const trustline = <%- importFile('test/fixtures/requests/prepare-trustline.json') %>;
return api.prepareTrustline(address, trustline).then(prepared =>
  {/* ... */});
```

<%- renderFixture("responses/prepare-trustline.json") %>