anchor.diff:  1. Upload a CSV file using [File Upload](#reference/files).
   2. Submit an [asynchronous import request](#reference/tables/load-data-asynchronously/imports-data) with `dataFileId` set to the File Id returned in the previous step.
   3. Poll job resource returned in the previous step until the `status` is `success` or `error`.
  +
  +Import from table and file workspace is supported.
  +
  +- For table workspace use dataWorkspaceId and set dataObject with name of source table.
  +- For file workspace use dataWorkspaceId and dataObject can be:
  +  - single file `file.csv`
  +  - folder `folder/` (mind the trailing slash)
  +  - manifest `file.csvmanifest`
  +- For file workspace always use `columns[]` attribute with lost of imported columns
   
   Further information can be found in the [Developers Documentation](https://developers.keboola.com/integrate/storage/api/import-export/).
   
  
positive.code:     + dataFileId (optional) - Id of the file stored in [File Uploads](#reference/files); all gzipped and sliced files are supported.
      + snapshotId (optional) - Id of a table snapshot - a table will be created from the snapshot.
      + dataWorkspaceId (optional) - Load from the table [workspace](#reference/workspaces). Use with the **dataTableName** attribute.
      + dataTableName (optional) - Load from the table in the [workspace](#reference/workspaces).
      + incremental (optional, number) - If incremental is set to 0, the target table is truncated before each import.
          Default: 0
      + delimiter (optional) - Field delimiter used in the CSV file. The default value is ','.  Use '\t' or type the tab char for tabulator.
  
negative.code: 
  - `dataFileId`,
  - `snapshotId`,
  - `dataWorkspaceId` and `dataObject`
  - `sourceTableId`
  
  + Parameters
  