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Related Party Transactions
6 Months Ended
Jun. 30, 2023
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
Weichai Transactions
See Note 3. Weichai Transactions for information regarding the Weichai Shareholder’s Loan Agreements and Collaboration Agreement.
Other Related Party Transactions
See Note 9. Commitments and Contingencies for information regarding the Company’s indemnification obligations related to certain former directors and officers of the Company.