Function bind_buttons 

pub fn bind_buttons(
    template: &FormTemplate,
    data: &Value,
    options: &BindOptions,
) -> FormResult<Vec<Value>>

Evaluate the template’s form buttons for a record.

Each button is an ordered JSON object type, tag, text, attrs; attrs keeps the output order type, class, style, name, value, href, onclick. Text is the declared content or the interface text of the button type in options.language; only the language option applies.