Direct Known Satisfying Interfaces: Class<Type,Arguments>, Function<Type,Arguments>, Member<Container,Kind>
All Known Subtypes Hierarchy

- Callable
  - Class
  - Function
  - Member
    - Attribute
    - MemberClass
    - MemberInterface
    - Method

A reference to a function. The type arguments encode the function return type and parameter types. The parameter types are typically represented as a tuple type. For example, the type of the function reference `plus<Float>` is:

    Callable<Float,[Float,Float]>

which we usually abbreviate `Float(Float,Float)`. Any instance of `Callable` may be invoked by supplying a positional argument list:

    Float(Float,Float) add = plus<Float>;
    value four = add(2.0, 2.0);

or by supplying a tuple containing the arguments:

    Float(Float,Float) add = plus<Float>;
    [Float,Float] twoAndTwo = [2.0, 2.0];
    value four = add(*twoAndTwo);

This interface may not be implemented by user code.

See also: Tuple

Inherited Attributes
Attributes inherited from: Object hash, string

Inherited Methods
Methods inherited from: Object equals