The type of optional values. When used from other .NET languages the
empty option is the null value.
Use the constructors Some and None to create values of this type.
Use the values in the Option module to manipulate values of this type,
or pattern match against the values directly.
'None' values will appear as the value null to other .NET languages.
Instance methods on this type will appear as static methods to other .NET languages
due to the use of null as a value representation.
Note: an abbreviation for Option<'a>
Full Type Signature
type 'a option = Option<'a>
|