Input file name for the bibtex rule

Description of the current situation

• arara version: 6.1.1
• operating system: Linux
• TeX distribution: TeX Live

Multiple bibliographies can be managed by the multibib package. This package requires that the bibtex command is executed on a specific file name, instead of the current file name, as shown at the bottom of page 4 of the manual.

How should arara act instead?

arara could support a user-given input, e.g.

% arara: bibtex: {filename: 'user_defined'}

Miscellaneous

• I have searched the issues for my problem.
• I have checked the documentation under "The official rule set" section.