extend type RootMutation {
  """
  Add `CustomMetadata` values to a supported parent (`Asset` | `WorkspaceProject`). Requires `basic:write` scope to be accessible and permission level `EDIT` for the respective parent.
  """
  addCustomMetadata(
    """`AddCustomMetadata` input argument."""
    input: AddCustomMetadataInput!
  ): AddCustomMetadata
}