pub fn as_str(&self) -> Option<&str> {
        match self {
            AttributeValue::String(s) => Some(s),
            _ => None,
        }
    }
/// Returns None unless self is a String. It will not convert.
Returns None unless self is a String. It will not convert.
Returns None unless self is a String . It will not convert .
pub fn as_str(&self) -> Option<&str> {
        match self {
            AttributeValue::String(s) => Some(s),
            _ => None,
        }
    }
pub fn as_str ( & self ) -> Option < & str > { match self { AttributeValue :: String ( s ) => Some ( s ) , _ => None , } }
Returns None unless self is a String.
Returns None unless self is a String .
&self
&self