code: private boolean isRelevantGetter(Method m) {
          return (m.getName().startsWith("get") || m.getName().startsWith("is")) && m.getParameterTypes().length == 0
                  && m.getDeclaringClass().getAnnotation(DynamoDBTable.class) != null
                  && !m.isAnnotationPresent(DynamoDBIgnore.class);
      }
docs: Returns whether the method given is a getter method we should serialize /
  deserialize to the service. The method must begin with "get" or "is",
  have no arguments, belong to a class that declares its table, and not be
  marked ignored.