Add util methods in different classes

[mr-zepol]

This aims to improve the usage of the library

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.23%	✅ 9.09%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (0a6732e)	6370	4758	74.69%
Head commit (83b9e3f)	6391 (+21)	4759 (+1)	74.46% (-0.23%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#578)	22	2	9.09%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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