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Invokes the given entry point as a v0 meta transaction.
  • The signature is replaced with the given signature.
  • The caller is the OS (address 0).
  • The transaction version is replaced by 0.
  • The transaction hash is replaced by the corresponding version-0 transaction hash.
The changes apply to the called contract and the inner contracts it calls. NOTE: This syscall should only be used to allow support for old version-0 bound accounts, and should not be used for other purposes.

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