diff --git a/alvra/maximum.py b/alvra/maximum.py
new file mode 100644
index 0000000..f060500
--- /dev/null
+++ b/alvra/maximum.py
@@ -0,0 +1,4 @@
+import numpy as np
+
+def proc(arr):
+    return np.max(arr)
\ No newline at end of file