Create flexible API for the flows_to primitive

[livia01px2019]

What Changed?

A summary of what you are proposing to change.

Why Does It Need To?

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Reference any issues that are related and use closing words such as "fixes" or
"closes" if those issues would be fully addressed by this PR.

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Checklist

• Above description has been filled out so that upon quash merge we have a
  good record of what changed.
• New functions, methods, types are documented. Old documentation is updated
  if necessary
• Documentation in Notion has been updated
• Tests for new behaviors are provided
  • New test suites (if any) ave been added to the CI tests (in
    .github/workflows/rust.yml) either as compiler test or integration test.
    Or justification for their omission from CI has been provided in this PR
    description.