pub trait FieldCheckable
{
fn is_valid_column_name(name: &str) -> bool;
}
pub struct CheckableBounds
{
start: Option<usize>,
content_start: Option<usize>,
content_end: Option<usize>,
end: Option<usize>,
}
#[cfg(test)]
mod tests
{
fn no_checkable_returns_as_is() {}
}