function that builds an opAttribute based on not between logic
nbt(x, y)
# S4 method for integer
nbt(x, y)
# S4 method for numeric
nbt(x, y)
# S4 method for Date
nbt(x, y)
the left side bound of the between logic This can either be an integer, numeric, or Date data type. Different data types will return the appropriate opAttribute type
the right side bound of the between logic. This can either be an integer, numeric, or Date data type. Different data types will return the appropriate opAttribute type