warning: unused variable: `e`
  --> src/encode.rs:28:13
   |
28 |         Err(e) => { Err(format!("{error_prefix}Not a valid base64 encoded string")) }
   |             ^ help: if this is intentional, prefix it with an underscore: `_e`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: unused import: `ion_rs::types::Struct`
 --> src/encode.rs:9:5
  |
9 | use ion_rs::types::Struct;
  |     ^^^^^^^^^^^^^^^^^^^^^

warning: unused import: `ion_rs::IonError::IoError`
 --> src/encode.rs:8:5
  |
8 | use ion_rs::IonError::IoError;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: unused imports: `IonError`, `IonResult`
 --> src/encode.rs:6:26
  |
6 | use ion_rs::{ion_struct, IonError, IonResult};
  |                          ^^^^^^^^  ^^^^^^^^^

warning: unused import: `DecodeError`
 --> src/encode.rs:4:14
  |
4 | use base64::{DecodeError, Engine};
  |              ^^^^^^^^^^^

warning: unused import: `std::io::ErrorKind`
 --> src/encode.rs:2:5
  |
2 | use std::io::ErrorKind;
  |     ^^^^^^^^^^^^^^^^^^

warning: unused imports: `Error`, `format`
 --> src/encode.rs:1:16
  |
1 | use std::fmt::{Error, format};
  |                ^^^^^  ^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default