pub fn register_encoded_file_descriptor_set(
        mut self,
        encoded_file_descriptor_set: &'b [u8],
    ) -> Self {
        self.encoded_file_descriptor_sets
            .push(encoded_file_descriptor_set);
        self
    }
Registers a byte slice containing an encoded `prost_types::FileDescriptorSet` with
the gRPC Reflection Service builder.
tonic-reflection/src/server/mod.rs