List of best mirrors for IP address 3.12.34.211, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/multiarch/pool/main/g/grpc/protobuf-compiler-grpc-dbgsym_1.30.2-3+rpi1+b1_arm64.deb