fix(*): Marks Signed trait as Sealed

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bindle"
-version = "0.4.0"
+version = "0.4.1"
 authors = [
     "Matt Butcher <[email protected]>",
     "Taylor Thomas <[email protected]>"

docs/README.md

@@ -27,7 +27,7 @@ on Linux, MacOS, and Windows (in PowerShell):
 
 1. Download your desired version from [the releases
    page](https://github.com/deislabs/bindles/releases)
-1. Unpack it (`tar -xzf bindle-v0.4.0-linux-amd64.tar.gz`)
+1. Unpack it (`tar -xzf bindle-v0.4.1-linux-amd64.tar.gz`)
 1. Move the bindle and bindle CLIs to their desired
    destinations somewhere in your `$PATH` (e.g. `mv bindle bindle-server /usr/local/bin/` on Unix-like
    systems or `mv *.exe C:\Windows\system32\` on Windows)
@@ -38,7 +38,7 @@ find Bindle, check to make sure that your `$PATH` environment variable is set co
 #### Validating
 
 If you'd like to validate the download, checksums can be downloaded from
-https://bindle.blob.core.windows.net/releases/checksums-v0.4.0.txt
+https://bindle.blob.core.windows.net/releases/checksums-v0.4.1.txt
 
 ### From Canary Builds
 

docs/crate-readme.md

@@ -7,7 +7,7 @@ Bindle is an aggregate object storage system used for storing aggregate applicat
 Add the following to your `Cargo.toml` dependencies:
 
 ```toml
-bindle = "0.1"
+bindle = "0.4"
 ```
 
 ### Features

src/invoice/mod.rs

@@ -49,7 +49,7 @@ pub type AnnotationMap = BTreeMap<String, String>;
 
 /// A sealed trait used to mark that an invoice has been signed. This trait cannot be implemented by
 /// consumers of the bindle crate
-pub trait Signed {
+pub trait Signed: sealed::Sealed {
     /// Consumes the object, returning the signed invoice
     fn signed(self) -> Invoice;
 }