pub fn lookup_value_for_attribute<'sqlite, 'attribute, E>(
sqlite: &'sqlite Connection,
attribute: &'attribute Keyword
) -> Result<Option<TypedValue>> where
Return a single value for the provided entity and attribute.
If the attribute is multi-valued, an arbitrary value is returned.
If no value is present for that entity,
None is returned.
attribute doesn't name an attribute, an error is returned.