Update reference.groovy

src/docs/scripting/reference.groovy

@@ -1 +1,63 @@
-// This file contains Freeplane API reference for Groovy scripting.
+// This file contains Freeplane API reference for Groovy scripting.
+
+/*
+  AttributeCondition #todo: [euu2021: I don't understand what it does.]
+*/
+
+/*
+  AttributesRO
+*/
+
+// Returns "true", if the selected node contains an attribute key that is equal to "aaa". Returns "false", otherwise.
+
+node.attributes.containsKey("aaa")
+
+// Returns the index of the first attribute with the name "aaa" if one exists or -1 otherwise.
+
+node.attributes.findFirst("aaa")
+
+// findValues(AttributeCondition condition) #todo
+
+// Returns the attribute value at the index 1.
+
+node.attributes.get(1)
+
+//  Returns the values of all the attributes that has the key equal to "aaa".
+
+node.attributes.getAll("aaa")
+
+// Returns the first value of an attribute with the name "aaa" or null otherwise.
+
+node.attributes.getFirst("aaa")
+
+// Returns the attribute key at the index 1.
+
+node.attributes.getKey(1)
+
+// Returns all attributes as a map.
+
+node.attributes.map
+
+// Returns all attribute names in the proper sequence.
+
+node.attributes.names
+
+// #todo: [euu2021: I don't understand what this method bellow does.]
+
+node.attributes.transformed
+
+// Returns all values as a list of Convertible. #todo: [euu2021: I don't understand what it does.]
+
+node.attributes.values
+
+// Returns "true", if the selected node has no attributes. Returns "false", otherwise.
+
+node.attributes.empty
+
+// Returns the number of attributes.
+
+node.attributes.size()
+
+/*
+  Attributes [euu: I already have the methods, so please skip this one]
+*/