MsgCreateGroupWithPolicy is the Msg/CreateGroupWithPolicy request type.
admin is the account address of the group and group policy admin.
members defines the group members.
group_metadata is any arbitrary metadata attached to the group.
group_policy_metadata is any arbitrary metadata attached to the group policy.
group_policy_as_admin is a boolean field, if set to true, the group policy account address will be used as group and group policy admin.
decision_policy specifies the group policy's decision policy.
A successful response.