bayesline.api.GroupMembership# model GroupMembership# Represents a user’s membership in a group. Fields# Field Type Required Default added_at datetime Yes added_by str Yes group_id int Yes id int Yes user_id str Yes field added_at: datetime [Required]# field added_by: str [Required]# field group_id: int [Required]# field id: int [Required]# field user_id: str [Required]#