32In order to answer those questions, it should be recalled that, according to settled case-law of the Court, an international agreement cannot affect the allocation of powers fixed by the Treaties or, consequently, the autonomy of the EU legal system, observance of which is ensured by the Court. That principle is enshrined in particular in Article 344 TFEU, under which the Member States undertake not to submit a dispute concerning the interpretation or application of the Treaties to any method of settlement other than those provided for in the Treaties (Opinion 2/13 (Accession of the EU to the ECHR) of 18 December 2014, EU:C:2014:2454, paragraph 201 and the case-law cited).
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