diff --git a/src/schema/anybundle/metadata.rs b/src/schema/anybundle/metadata.rs
new file mode 100644
index 0000000..3a24582
--- /dev/null
+++ b/src/schema/anybundle/metadata.rs
@@ -0,0 +1,32 @@
+/// The contents of the `anybundle.json` file of a bundle.
+///
+/// Both Core Bundles and Set Bundles are bundles, and both have anybundle.
+#[derive(Clone, Debug, PartialEq, Eq, Hash, serde::Serialize, serde::Deserialize)]
+pub struct BundleMetadata {
+    /// The locales included in the bundle.
+    ///
+    /// I've never seen more that a single locale here, but the specification allows that.
+    locales: Vec<String>,
+
+    /// ???
+    #[serde(default = "none")]
+    client_hash: Option<String>,
+
+    /// ???
+    #[serde(default = "none")]
+    gameplay_data_hash: Option<String>,
+
+    /// ???
+    #[serde(default = "none")]
+    timestamp: Option<String>,
+
+    /// ???
+    #[serde(default = "none")]
+    patchline_ref: Option<String>,
+}
+
+
+/// Generate a [Option::None] to use as default in [serde].
+fn none<T>() -> Option<T> {
+    Option::<T>::None
+}
diff --git a/src/schema/anybundle/mod.rs b/src/schema/anybundle/mod.rs
new file mode 100644
index 0000000..8fe44fb
--- /dev/null
+++ b/src/schema/anybundle/mod.rs
@@ -0,0 +1,5 @@
+//! This module defines the types used in all Data Dragon bundles.
+
+mod metadata;
+
+pub use metadata::BundleMetadata;
diff --git a/src/schema/mod.rs b/src/schema/mod.rs
index d10e3b2..9950cdf 100644
--- a/src/schema/mod.rs
+++ b/src/schema/mod.rs
@@ -2,3 +2,4 @@
 
 pub mod corebundle;
 pub mod setbundle;
+pub mod anybundle;