# transforms.api.Markings

## *class* transforms.api.Markings(marking\_ids, on\_branches) {#transforms.api.Markings}

Specification for a marking that stops propagating from input. Used in `stop_propagating` in [`transforms.api.Input`](../api-input/index.md#transforms.api.Input).

See also [`transforms.api.OrgMarkings`](../api-orgmarkings/index.md#transforms.api.OrgMarkings) — organization markings that are no longer required on the output; used with the `stop_requiring` parameter in [`transforms.api.Input`](../api-input/index.md#transforms.api.Input).