code: def is_sparse(self):
      return self.op.is_sparse()
  
imports: from ...serialization.serializables import Serializable, FieldTypes, DictField, ReferenceField
  from ...utils import AttributeDict
  from ..base import Base
label_desc: Use image node_id 5 for calling the EntityData obj's underlying member method code with example usage: obj.is_sparse() and returns: self