Add support for Wildcard type

Author: Miguel Algorri

elasticsearch_dsl/field.py

@@ -313,6 +313,10 @@ class ConstantKeyword(Keyword):
     name = "constant_keyword"
 
 
+class Wildcard(Keyword):
+    name = "wildcard"
+
+
 class Boolean(Field):
     name = "boolean"
     _coerce = True

tests/test_field.py

@@ -177,6 +177,11 @@ def test_constant_keyword():
     assert f.to_dict() == {"type": "constant_keyword"}
 
 
+def test_wildcard():
+    f = field.Wildcard()
+    assert f.to_dict() == {"type": "wildcard"}
+
+
 def test_rank_features():
     f = field.RankFeatures()
     assert f.to_dict() == {"type": "rank_features"}