Merge branch 'file_id_var' into 'master'

Fix file_id variable name in format strings

See merge request !18
3 jobs for master in 1 minute and 29 seconds
Status Job ID Name Coverage
  Test
passed #664415523
entry

00:01:28

passed #664415520
mypy

00:01:16

passed #664415525
traits

00:01:25