clone method
Implementation
OrmDefinitions clone() {
var definitions = OrmDefinitions();
definitions.tableName = tableName;
definitions.primaryKey = primaryKey;
definitions.idIncrementing = idIncrementing;
definitions.keyType = keyType;
definitions.attributes = attributes;
definitions.fillable = fillable;
definitions.guarded = guarded;
definitions.relations = relations;
definitions.data = data;
definitions.primaryKeyVal = primaryKeyVal;
return definitions;
}