## Syntax
```mermaid
%%{init: {
'theme': 'base',
'flowchart': { 'padding': '10' },
'themeVariables': {
'fontSize': '11px',
'fontFamily': 'Arial'
}
}}%%
flowchart LR
Start((START)) --> IS_EMAIL[IS_EMAIL]:::quoted
is_email -->| | IS_EMAIL
IS_EMAIL --> End((END))
```