LENGTH Body
## client serial
INT32 7
-FIELD_NAME name
+
+HEADER_FIELD PATH
+TYPE OBJECT_PATH
+OBJECT_PATH '/foo'
+HEADER_FIELD INTERFACE
TYPE STRING
STRING 'org.freedesktop.Foo'
+HEADER_FIELD MEMBER
+TYPE STRING
+STRING 'Bar'
+HEADER_FIELD SIGNATURE
+TYPE STRING
+STRING ''
+
ALIGN 8
END_LENGTH Header
START_LENGTH Body