Indicates whether an endpoint of some range is contained in the range itself ("closed") or not
("open"). If a range is unbounded on a side, it is neither open nor closed on that side; the
bound simply does not exist.
Returns the enum constant of this type with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this type. (Extraneous whitespace characters are
name - the name of the enum constant to be returned.