assert_registers_match_parent

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Check that the registers following decomposition match those of the original bloq.

qualtran.testing.assert_registers_match_parent(
    bloq: qualtran.Bloq
) -> qualtran.CompositeBloq

This is a strict condition of the decompose_bloq() protocol. A decomposition is only valid if it takes exactly the same inputs and outputs.

This returns the decomposed bloq for further checking.