Prepare sync artifacts from a local instance to a cloud instance .md

!lamin disconnect
# need to add pertdb to environment in order to import it
!lamin settings modules set bionty,pertdb

import lamindb as ln
import bionty as bt
import pertdb
import pandas as pd

ln.setup.init(storage="./test-sync-to-cloud", modules="bionty,pertdb")

! re-setting django: avoid this by clearing the default instance on the command line via: lamin disconnect

→ initialized lamindb: testuser1/test-sync-to-cloud

artifact = ln.Artifact.from_dataframe(
    pd.DataFrame({"a": [1, 2, 3]}), description="test-sync-to-cloud"
).save()
features = bt.CellMarker.from_values(
    ["PD1", "CD21"], field=bt.CellMarker.name, organism="human"
).save()
artifact.features._add_schema(ln.Schema(features), slot="var")
organism = bt.Organism.from_source(name="human").save()
artifact.labels.add(organism)
compound = pertdb.Compound(name="compound-test-sync-to-cloud").save()
artifact.compounds.add(compound)
artifact.describe()

! no run & transform got linked, call `ln.track()` & re-run

Artifact:  (0000)
|   description: test-sync-to-cloud
├── uid: X6dVMRaRn9Z6ws8h0000            run:                 
│   kind: dataset                        otype: DataFrame     
│   hash: 7L2QcOI8XJdkWHCN_8OZNg         size: 1.6 KB         
│   branch: main                         space: all           
│   created_at: 2026-06-22 09:00:35 UTC  created_by: testuser1
│   n_observations: 3                                         
├── storage/path: 
│   /home/runner/work/lamindb/lamindb/docs/storage/test-sync-to-cloud/.lamindb/X6dVMRaRn9Z6ws8h0000.parquet
├── Dataset features
│   └── var (2 bionty.CellMarker)                                                                                  
│       CD21                           num                                                                         
│       PD1                            num                                                                         
└── Labels
    └── .compounds                     pertdb.Compound                      compound-test-sync-to-cloud            
        .organisms                     bionty.Organism                      human                                  

assert artifact.features.slots["var"].members.count() == 2