Rubocop has several style cops related to trailing commas. The meaning of trailing commas is often to allow adding new method arguments or structure elements without changing previous ones.

However, having syntax like this I won't be able to add new argument at the end without changing lines with existing arguments.

Should we disable comma before closing brackets?

Expected behavior

Commas right before closing brackets should not be allowed

Actual behavior

some_method(a: "b",
  c: "d",)

is a valid syntax

Steps to reproduce the problem

1. Use this cop

Style/TrailingCommaInArguments:
  EnforcedStyleForMultiline: consistent_comma

2. Add code described above
3. Run rubocop

RuboCop version

$ bin/rubocop -V
1.31.2 (using Parser 3.1.2.0, rubocop-ast 1.18.0, running on ruby 3.1.2 x86_64-darwin21)
  - rubocop-performance 1.11.5
  - rubocop-rails 2.12.4
  - rubocop-rspec 2.4.0