It is suspected that the interface definition is incorrect #688

Checklist

• I have looked into the Readme and Examples, and have not found a suitable solution or answer.
• I have looked into the API documentation and have not found a suitable solution or answer.
• I have searched the issues and have not found a suitable solution or answer.
• I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• I agree to the terms within the Auth0 Code of Conduct.

Describe the problem you'd like to have solved

1 .The build () method of the Verification interface returns an instance of the JWTVerifier interface
2.Open extensibility，For example, the error of token parsing failure is handled in a customized manner.

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Describe the ideal solution

Verification's build () method definition returns the JWTVerifier abstraction

Alternatives and current workarounds

There's no good solution for now

Additional context