EC2 > Structures > TransitGatewayAttachmentAssociation TransitGatewayAttachmentAssociation¶ Structure Class¶ TransitGatewayAttachmentAssociation dataclass ¶ Bases: _SerdeShape Describes an association. Attributes¶ state class-attribute instance-attribute ¶ state: str | None = ... The state of the association. transit_gateway_policy_table_id class-attribute instance-attribute ¶ transit_gateway_policy_table_id: str | None = ... The ID of the transit gateway policy table associated with the attachment. transit_gateway_route_table_id class-attribute instance-attribute ¶ transit_gateway_route_table_id: str | None = ... The ID of the route table for the transit gateway.