diff --git a/src/integrators/mod.rs b/src/integrators/mod.rs
new file mode 100644
index 0000000..ba3df95
--- /dev/null
+++ b/src/integrators/mod.rs
@@ -0,0 +1,7 @@
+use crate::common::*;
+
+pub mod testintegrator;
+
+pub trait Integrator {
+
+}
\ No newline at end of file
diff --git a/src/integrators/testintegrator.rs b/src/integrators/testintegrator.rs
new file mode 100644
index 0000000..9729c1c
--- /dev/null
+++ b/src/integrators/testintegrator.rs
@@ -0,0 +1,2 @@
+use crate::common::*;
+