diff --git a/src/framework.rs b/src/framework.rs
new file mode 100644
index 0000000..0039c86
--- /dev/null
+++ b/src/framework.rs
@@ -0,0 +1,12 @@
+pub trait DataSource {
+    fn schema(&self);
+    fn read(&self) -> DResult<()>;
+}
+
+pub struct Diagnostics {
+    
+}
+
+pub type DResult<T> = Result<T, Diagnostics>;
+
+fn _data_source_obj_safe(_: &dyn DataSource) {}
diff --git a/src/main.rs b/src/main.rs
index c788f7e..0932840 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,7 @@
 mod cert;
 mod server;
 mod values;
+mod framework;
 
 use std::{env, path::PathBuf};
 
diff --git a/src/server.rs b/src/server.rs
index df072bc..5267ed3 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -208,7 +208,7 @@ impl Provider for MyProvider {
         &self,
         request: Request<tfplugin6::read_data_source::Request>,
     ) -> Result<Response<tfplugin6::read_data_source::Response>, Status> {
-        tracing::error!("read_data_source");
+        tracing::info!("read_data_source");
 
         let reply = tfplugin6::read_data_source::Response {
             state: Some(tfplugin6::DynamicValue {
diff --git a/src/values.rs b/src/values.rs
index 9323933..66cf99b 100644
--- a/src/values.rs
+++ b/src/values.rs
@@ -17,11 +17,6 @@ impl Type {
     }
 }
 
-pub struct DynamicValue {
-    msgpack: Option<Vec<u8>>,
-    json: Option<Vec<u8>>,
-}
-
 // this is very dumb and wrong
 pub enum Value {
     String(String),