compile(token) {
                const template = this;

                token.expression = token.match[2].trim();
                token.output = Twig.expression.compile({
                    type: Twig.expression.type.expression,
                    value: token.expression
                }).stack;

                return Twig.logic.handler[Twig.logic.type.block].compile.apply(template, [token]);
            }
Block shorthand logic tokens.

 Format: {% block title expression %}