entc describe output

Car:
	+---------------+-----------+--------+----------+----------+---------+---------------+-----------+--------------------------------+------------+
	|     Field     |   Type    | Unique | Optional | Nillable | Default | UpdateDefault | Immutable |           StructTag            | Validators |
	+---------------+-----------+--------+----------+----------+---------+---------------+-----------+--------------------------------+------------+
	| id            | <nil>     | false  | false    | false    | false   | false         | false     | json:"id,omitempty"            |          0 |
	| model         | int8      | false  | false    | false    | false   | false         | false     | json:"model,omitempty"         |          0 |
	| registered_at | time.Time | false  | false    | false    | false   | false         | false     | json:"registered_at,omitempty" |          0 |
	+---------------+-----------+--------+----------+----------+---------+---------------+-----------+--------------------------------+------------+
	+-------+------+---------+---------+----------+--------+----------+
	| Edge  | Type | Inverse | BackRef | Relation | Unique | Optional |
	+-------+------+---------+---------+----------+--------+----------+
	| owner | User | true    | cars    | M2O      | true   | true     |
	+-------+------+---------+---------+----------+--------+----------+
	
Group:
	+-------+-------+--------+----------+----------+---------+---------------+-----------+-----------------------+------------+
	| Field | Type  | Unique | Optional | Nillable | Default | UpdateDefault | Immutable |       StructTag       | Validators |
	+-------+-------+--------+----------+----------+---------+---------------+-----------+-----------------------+------------+
	| id    | <nil> | false  | false    | false    | false   | false         | false     | json:"id,omitempty"   |          0 |
	| name  | int8  | false  | false    | false    | false   | false         | false     | json:"name,omitempty" |          1 |
	+-------+-------+--------+----------+----------+---------+---------------+-----------+-----------------------+------------+
	+-------+------+---------+---------+----------+--------+----------+
	| Edge  | Type | Inverse | BackRef | Relation | Unique | Optional |
	+-------+------+---------+---------+----------+--------+----------+
	| users | User | false   |         | M2M      | false  | true     |
	+-------+------+---------+---------+----------+--------+----------+
	
User:
	+-------+-------+--------+----------+----------+---------+---------------+-----------+-----------------------+------------+
	| Field | Type  | Unique | Optional | Nillable | Default | UpdateDefault | Immutable |       StructTag       | Validators |
	+-------+-------+--------+----------+----------+---------+---------------+-----------+-----------------------+------------+
	| id    | <nil> | false  | false    | false    | false   | false         | false     | json:"id,omitempty"   |          0 |
	| age   | int64 | false  | false    | false    | false   | false         | false     | json:"age,omitempty"  |          1 |
	| name  | int8  | false  | false    | false    | true    | false         | false     | json:"name,omitempty" |          0 |
	+-------+-------+--------+----------+----------+---------+---------------+-----------+-----------------------+------------+
	+--------+-------+---------+---------+----------+--------+----------+
	|  Edge  | Type  | Inverse | BackRef | Relation | Unique | Optional |
	+--------+-------+---------+---------+----------+--------+----------+
	| cars   | Car   | false   |         | O2M      | false  | true     |
	| groups | Group | true    | users   | M2M      | false  | true     |
	+--------+-------+---------+---------+----------+--------+----------+