Thanks for the library.
I am trying to run your examples_test.go ExampleJWTConfig() function and have an error:
create credential error: private key should be a PEM or plain PKSC1 or PKCS8; parse error: asn1: structure error: tags don't match (16 vs {class:0 tag:13 length:45 isCompound:true}) {optional:false explicit:false application:false private:false defaultValue:<nil> tag:<nil> stringType:0 timeType:0 set:false omitEmpty:false} pkcs1PrivateKey @2 exit status 1