`updateUnionField()` does not support `visibility: hidden` for reverse fields.

[sgwrangler]

client.updateUnionField({
    apiId: 'target',
    displayName: 'Placement target',
    modelApiId: 'DynamicRow',
    reverseField: {
      modelApiIds: [
        <VARIOUS MODELS>,
      ],
      // Here should be an option for visibility, as is done in client.createUnionField. 
      // This would set the visibility for the reverse fields.
    },
    visibility: VisibilityTypes.ReadWrite, // This sets the visibitlity for the DynamicRow model.
  })

Right now I am trying to update my union field, adding visibility: hidden for the reverse fields. This is not possible with the current management SDK. Although it is supported in createUnionField(), I can't delete my model because I would lose all my entries.

Also displayName should be supported for reverseField in updateUnionField().