Associates a key with a value. Associations can be created via the -> operator which is defined in class Object.
Associations are used internally in Dictionary.
Create an Association between two objects.
| key | any object | 
| value | any object | 
the key object.
the value object.
Compare the keys of two Associations.
Compare the keys of two Associations.
Compute the hash value of the Association.
Write a string representation to the stream.
Write a compilable string representation to the stream.