Utility functions for encoding and decoding strings with base64.
See https://en.wikipedia.org/wiki/Base64.
## base64.decode
base64.decode(data)
Decode a base64 encoded string.
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| data | base64-encoded string | none |
**RETURNS**
A string containing the decoded data
## base64.encode
base64.encode(data)
Base64 encode a string.
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| data | string to encode | none |
**RETURNS**
The base64-encoded string