code: public <T> T getAs(String name, Class<T> returnType) {
      return Conversions.convert(get(name), returnType);
    }
docs: Returns the value for {@code name} coerced to the given type, T.
  
  @param <T> the return type
  @param name the String name of the value to return
  @param returnType  The return type, which must be assignable from Long,
  Integer, String, or Object
  @return the Object stored for {@code name} coerced to a T
  @throws ClassCastException if the return type is unknown