3 files changed, 21 insertions, 0 deletions
diff --git a/packages/gitbook-core/src/shapes/Language.js b/packages/gitbook-core/src/shapes/Language.js
new file mode 100644
index 0000000..eea37a7
--- /dev/null
+++ b/packages/gitbook-core/src/shapes/Language.js
@@ -0,0 +1,7 @@
+const React  = require('react');
+const { string, shape } = React.PropTypes;
+
+module.exports = shape({
+    id:    string.isRequired,
+    title: string.isRequired
+});
diff --git a/packages/gitbook-core/src/shapes/Languages.js b/packages/gitbook-core/src/shapes/Languages.js
new file mode 100644
index 0000000..076aec5
--- /dev/null
+++ b/packages/gitbook-core/src/shapes/Languages.js
@@ -0,0 +1,12 @@
+const React  = require('react');
+const { listOf } = require('react-immutable-proptypes');
+const { shape, string } = React.PropTypes;
+
+const fileShape = require('./File');
+const languageShape = require('./Language');
+
+module.exports = shape({
+    current: string.isRequired,
+    file: fileShape.isRequired,
+    list: listOf(languageShape).isRequired
+});
diff --git a/packages/gitbook-core/src/shapes/index.js b/packages/gitbook-core/src/shapes/index.js
index 8b28842..f56b78c 100644
--- a/packages/gitbook-core/src/shapes/index.js
+++ b/packages/gitbook-core/src/shapes/index.js
@@ -9,6 +9,8 @@ module.exports = {
     Page:           require('./Page'),
     File:           require('./File'),
     History:        require('./History'),
+    Language:       require('./Language'),
+    Languages:      require('./Languages'),
     Location:       require('./Location'),
     Readme:         require('./Readme'),
     Summary:        require('./Summary'),