Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001759631-22-000021-index.html | 2022-05-09 17:13:47 | |
| 0001759631-22-000021.txt | 2022-05-09 17:13:47 | |
 0001759631-22-000021-xbrl.zip | 21066 | 2022-05-09 17:13:47 |
| exhibit991033122.htm | 126241 | 2022-05-09 17:13:47 |
| FilingSummary.xml | 1644 | 2022-05-09 17:13:47 |
| Financial_Report.xlsx | 5684 | 2022-05-09 17:13:47 |
| hyln-20220509.htm | 36437 | 2022-05-09 17:13:47 |
| hyln-20220509.xsd | 1905 | 2022-05-09 17:13:47 |
| hyln-20220509_htm.xml | 11571 | 2022-05-09 17:13:47 |
| hyln-20220509_lab.xml | 24945 | 2022-05-09 17:13:47 |
| hyln-20220509_pre.xml | 13140 | 2022-05-09 17:13:47 |
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| MetaLinks.json | 17035 | 2022-05-09 17:13:47 |
| R1.htm | 40239 | 2022-05-09 17:13:47 |
| report.css | 2767 | 2022-05-09 17:13:47 |
| Show.js | 1085 | 2022-05-09 17:13:47 |