diff --git a/examples/dependencies.tm b/examples/tomodeps.tm
similarity index 68%
rename from examples/dependencies.tm
rename to examples/tomodeps.tm
index 3719e07..e7066a5 100644
--- a/examples/dependencies.tm
+++ b/examples/tomodeps.tm
@@ -8,7 +8,7 @@ _HELP := "
     $_USAGE
 "
 
-func get_module_imports_from_file(file:Text, imports:&{Text}, visited_files:&{Text}):
+func _get_module_imports_from_file(file:Text, imports:&{Text}, visited_files:&{Text}):
     return if visited_files:has(file)
 
     reader := when LineReader.from_file(file) is Failure(msg):
@@ -24,12 +24,12 @@ func get_module_imports_from_file(file:Text, imports:&{Text}, visited_files:&{Te
             resolved := relative_path(resolve_path(local_import, file))
             if resolved != "":
                 local_import = resolved
-            get_module_imports_from_file(local_import, imports, visited_files)
+            _get_module_imports_from_file(local_import, imports, visited_files)
         else if line:matches($/use {id}/):
             other_module := line:replace($/use {..}/, "\1")
             imports:add(other_module)
 
-func get_module_imports_from_module(module:Text)->{Text}:
+func _get_module_imports_from_module(module:Text)->{Text}:
     files_path := resolve_path("~/.local/src/tomo/$module/lib$(module).files")
     if files_path == "":
         !! couldn't resolve: $files_path
@@ -44,21 +44,21 @@ func get_module_imports_from_module(module:Text)->{Text}:
         for line in files_content:lines():
             line_resolved := resolve_path(line, relative_to="~/.local/src/tomo/$module/")
             skip if line_resolved == ""
-            get_module_imports_from_file(line_resolved, &imports, &visited)
+            _get_module_imports_from_file(line_resolved, &imports, &visited)
         return imports
 
-func build_module_dependency_graph(module:Text, dependencies:&{Text:@{Text}}):
+func _build_module_dependency_graph(module:Text, dependencies:&{Text:@{Text}}):
     return if dependencies:has(module)
 
     module_deps := @{:Text}
     dependencies:set(module, module_deps)
 
-    for dep in get_module_imports_from_module(module):
+    for dep in _get_module_imports_from_module(module):
         module_deps:add(dep)
-        build_module_dependency_graph(dep, dependencies)
+        _build_module_dependency_graph(dep, dependencies)
 
 
-func build_file_dependency_graph(filename:Text, dependencies:&{Text:@{Text}}):
+func _build_file_dependency_graph(filename:Text, dependencies:&{Text:@{Text}}):
     return if dependencies:has(filename)
 
     reader := when LineReader.from_file(filename) is Failure(msg):
@@ -77,20 +77,20 @@ func build_file_dependency_graph(filename:Text, dependencies:&{Text:@{Text}}):
                 used_file = resolved
 
             file_deps:add(used_file)
-            build_file_dependency_graph(used_file, dependencies)
+            _build_file_dependency_graph(used_file, dependencies)
         else if line:matches($/use {id}/):
             module := line:replace($/use {..}/, "\1")
             file_deps:add(module)
-            build_module_dependency_graph(module, dependencies)
+            _build_module_dependency_graph(module, dependencies)
 
 
 func get_dependency_graph(file:Text)->{Text:{Text}}:
     graph := {:Text:@{Text}}
     resolved := relative_path(file)
-    build_file_dependency_graph(resolved, &graph)
+    _build_file_dependency_graph(resolved, &graph)
     return {f:deps[] for f,deps in graph}
 
-func draw_tree(file:Text, dependencies:{Text:{Text}}, already_printed:&{Text}, prefix="", is_last=yes):
+func _draw_tree(file:Text, dependencies:{Text:{Text}}, already_printed:&{Text}, prefix="", is_last=yes):
     color_file := if file:matches($/{id}/):
         "$\x1b[34;1m$file$\x1b[m"
     else if resolve_path(file) != "":
@@ -110,7 +110,20 @@ func draw_tree(file:Text, dependencies:{Text:{Text}}, already_printed:&{Text}, p
     children := dependencies:get(file, {:Text})
     for i,child in children.items:
         is_child_last := (i == children.length)
-        draw_tree(child, dependencies, already_printed, child_prefix, is_child_last)
+        _draw_tree(child, dependencies, already_printed, child_prefix, is_child_last)
+
+func draw_tree(file:Text, dependencies:{Text:{Text}}):
+    printed := {:Text}
+    resolved := relative_path(file)
+    if resolved != "":
+        file = resolved
+
+    say(file)
+    printed:add(file)
+    children := dependencies:get(file, {:Text})
+    for i,child in children.items:
+        is_child_last := (i == children.length)
+        _draw_tree(child, dependencies, already_printed=&printed, is_last=is_child_last)
 
 func main(files:[Text]):
     for f,file in files:
@@ -118,16 +131,6 @@ func main(files:[Text]):
             say("$\x1b[2mSkipping $file$\x1b[m")
             skip
 
-        printed := {:Text}
-        resolved := relative_path(file)
-        if resolved != "":
-            file = resolved
+        dependencies := get_dependency_graph(file)
+        draw_tree(file, dependencies)
 
-        deps := get_dependency_graph(file)
-
-        say(file)
-        printed:add(file)
-        children := deps:get(file, {:Text})
-        for i,child in children.items:
-            is_child_last := (i == children.length)
-            draw_tree(child, deps, already_printed=&printed, is_last=is_child_last)