An immutable data type representing an image meme expression, as defined in the PS3 handout.
any MemeExpression
true if and only if this and that are structurally-equal MemeExpressions, as defined in the PS3 handout
a parsable representation of this expression, such that for all expr: MemeExpression, expr.equalValue(parse(expr.toString()))
An immutable data type representing an image meme expression, as defined in the PS3 handout.