src Col? col(Str name, Bool checked := true)

Get a column by name. If not found and checked is true then throw ArgErr, otherwise return null.

src Col[] cols()

Get a read-only list of the columns.

src @Operator
Obj? get(Col col)

Get column value. See type mapping.

src @Operator
Void set(Col col, Obj? val)

Set a column value. See type mapping.

src virtual override Str toStr()

Dump the cells separated by a comma.

src virtual override Obj? trap(Str name, Obj?[]? args := null)

Trap is used to get or set a column by name.