Yes
So formal is, for example, paragraph 1 of article 15 of #TEU https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A12016M015 :
> The European Council shall provide the Union with the necessary impetus for its development and shall define the general political directions and priorities thereof. It shall not exercise legislative functions.
Shall I study the Treaties or is some concise description of the roles of the Union Bodies available?