gnu: Add trytond-account-move-line-grouping.

* gnu/packages/tryton.scm (trytond-account-move-line-grouping): New variable.

gnu/packages/tryton.scm

@@ -778,6 +778,25 @@ average price of the posted invoice lines that are linked to it.")
   (deprecated-package
    "python-trytond-account-invoice-stock" trytond-account-invoice-stock))
 
+(define-public trytond-account-move-line-grouping
+  (package
+    (name "trytond-account-move-line-grouping")
+    (version "6.2.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "trytond_account_move_line_grouping" version))
+              (sha256
+               (base32 "1mrh17a55hkfj89vyx1jrmgzps4ig0m03c10ngsy4my6v6rnnn2r"))))
+    (build-system python-build-system)
+    (arguments (tryton-arguments "trytond_account_move_line_grouping"))
+    (native-inputs (%standard-trytond-native-inputs))
+    (propagated-inputs (list python-sql trytond trytond-account))
+    (home-page "https://docs.tryton.org/projects/modules-account-move-line-grouping")
+    (synopsis "Tryton module to display account move lines grouped")
+    (description "The @emph{Account Move Line Grouping} Tryton module adds a
+view that displays move lines grouped.")
+    (license license:gpl3+)))
+
 (define-public trytond-account-payment
   (package
     (name "trytond-account-payment")