can add personal function

tests/dictionaries/40empty_param/00_base.xml

@@ -0,0 +1,21 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<rougail>
+    <services/>
+
+    <variables>
+        <family name="proxy authentifié">
+            <variable name="toto1" type="port" description="Port d'écoute du proxy" mode="expert">
+            </variable>
+            <variable name="toto2" type="port" description="Port d'écoute du proxy NTLM" mode="expert">
+                <value>3127</value>
+            </variable>
+        </family>
+    </variables>
+
+    <constraints>
+        <fill name="calc_multi_condition" target="toto1">
+	    <param/>
+        </fill>
+    </constraints>
+
+</rougail>

tests/dictionaries/40empty_param/makedict/base.json

@@ -0,0 +1,2 @@
+{"rougail.proxy_authentifie.toto1": null, "rougail.proxy_authentifie.toto2": "3127"}
+

tests/dictionaries/40empty_param/tiramisu/base.py

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+try:
+    from tiramisu3 import *
+except:
+    from tiramisu import *
+from rougail.tiramisu import ConvertDynOptionDescription
+import imp
+func = imp.load_source('func', 'tests/dictionaries/../eosfunc/test.py')
+option_3 = PortOption(allow_private=True, properties=frozenset({'expert'}), name='toto1', doc='Port d\'écoute du proxy', multi=False, default=Calculation(func.calc_multi_condition, Params((ParamValue("None")), kwargs={})))
+option_4 = PortOption(allow_private=True, properties=frozenset({'expert', 'mandatory'}), name='toto2', doc='Port d\'écoute du proxy NTLM', multi=False, default='3127')
+option_2 = OptionDescription(name='proxy_authentifie', doc='proxy authentifié', properties=frozenset({'expert'}), children=[option_3, option_4])
+option_1 = OptionDescription(name='rougail', doc='rougail', children=[option_2])
+option_0 = OptionDescription(name='baseoption', doc='baseoption', children=[option_1])