beteran-protobuf-rust/src/protobuf/rpc.rs

use std::fmt;
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Error {
  #[prost(int32, tag = "1")]
  pub code: i32,
  #[prost(string, optional, tag = "2")]
  pub message: ::core::option::Option<::prost::alloc::string::String>,
  #[prost(bytes = "vec", optional, tag = "3")]
  pub data: ::core::option::Option<::prost::alloc::vec::Vec<u8>>,
}

impl fmt::Display for Error {
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    write!(
      f,
      "Error code: {}, message: {:?}, data: {:?}",
      self.code, self.message, self.data
    ) // user-facing output
  }
}