DynamoDB > Structures > AttributeDefinition AttributeDefinition¶ Structure Class¶ AttributeDefinition dataclass ¶ Represents an attribute for describing the schema for the table and indexes. Attributes¶ attribute_name instance-attribute ¶ attribute_name: str A name for the attribute. attribute_type instance-attribute ¶ attribute_type: str The data type for the attribute, where: S - the attribute is of type String N - the attribute is of type Number B - the attribute is of type Binary