Describes a deposit to a single address which is unlocked via a signature.
### from(address, amount): [SignatureLockedSingleOutput](#signaturelockedsingleoutput)
Creates a new `SignatureLockedSingleOutput`.
| Parameter | Type | Description |
| --------------- | -------- | -------- |
| address | [Address](#address) | The address to set |
| amount | long | The amount to set |
### amount(): long
Returns the amount of a `SignatureLockedSingleOutput`.
### address(): [Address](#address)
Returns the address of a `SignatureLockedSingleOutput`.