> ## Documentation Index
> Fetch the complete documentation index at: https://anaconda.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# prj.register_external_data

export const GCell = ({children, className}) => <div className={`grid-table-cell ${className || ""}`} role="cell">
    {children}
  </div>;

export const GTH = ({children, className}) => <div className={`grid-table-th ${className || ""}`} role="columnheader">
    {children}
  </div>;

export const GRow = ({children}) => <div className="grid-table-row" role="row">{children}</div>;

export const GBody = ({children}) => <div className="grid-table-body" role="rowgroup">{children}</div>;

export const GHead = ({children}) => <div className="grid-table-head" role="rowgroup">{children}</div>;

export const GTable = ({children, className, cols}) => <div className={`grid-table not-prose overflow-hidden rounded-2xl ${className || ""}`} style={{
  "--grid-table-cols": cols
}} role="table">
    {children}
  </div>;

Register an external data reference, such as an S3 path, as a data asset.

```python theme={null}
prj.register_external_data(name, blobs, kind, annotations=None, tags=None, description=None)
```

Register external data (S3, databases, etc.) as a data asset.

<GTable cols="19% 10% 71%">
  <GHead>
    <GRow>
      <GTH>Parameter</GTH>
      <GTH>Type</GTH>
      <GTH>Description</GTH>
    </GRow>
  </GHead>

  <GBody>
    <GRow>
      <GCell>`name`</GCell>
      <GCell>str</GCell>
      <GCell>Asset name</GCell>
    </GRow>

    <GRow>
      <GCell>`blobs`</GCell>
      <GCell>list</GCell>
      <GCell>URIs/references (e.g., `["s3://bucket/file.csv"]`)</GCell>
    </GRow>

    <GRow>
      <GCell>`kind`</GCell>
      <GCell>str</GCell>
      <GCell>Data type (e.g., `"s3"`, `"database"`)</GCell>
    </GRow>

    <GRow>
      <GCell>`annotations`</GCell>
      <GCell>dict</GCell>
      <GCell>Metadata</GCell>
    </GRow>

    <GRow>
      <GCell>`tags`</GCell>
      <GCell>dict</GCell>
      <GCell>Tags</GCell>
    </GRow>

    <GRow>
      <GCell>`description`</GCell>
      <GCell>str</GCell>
      <GCell>Description</GCell>
    </GRow>
  </GBody>
</GTable>

```python theme={null}
self.prj.register_external_data("raw_logs",
    blobs=["s3://data-lake/logs/2025-01-01/"],
    kind="s3",
    annotations={"size_gb": 450})
```