code: public JavaWriter beginInitializer(boolean isStatic) throws IOException {
      indent();
      if (isStatic) {
        out.write("static");
        out.write(" {\n");
      } else {
        out.write("{\n");
      }
      scopes.push(Scope.INITIALIZER);
      return this;
    }
docs: Emits an initializer declaration.
  
  @param isStatic true if it should be an static initializer, false for an instance initializer.