## base64_encode
```mermaid
%%{init: {
'theme': 'base',
'themeVariables': {
'fontSize': '11px',
'nodePadding': '1',
'nodeBorder': '1',
'lineWidth': '0.8',
'fontFamily': 'Arial'
}
}}%%
flowchart LR
Start(( )) --> base64_encode
base64_encode -->| | BASE64_ENCODE
BASE64_ENCODE --> End(( ))
```