SyntaxWarning: invalid escape sequence '\['

[nnarek]

Following code throws an warning, while the same expression successfully evaluates in other Wolfram clients

from wolframclient.evaluation import WolframLanguageSession
from wolframclient.language import wl, wlexpr

session = WolframLanguageSession()
session.evaluate(wlexpr("Complexes \[LongRightArrow] Complexes == Complexes \[LongRightArrow] Complexes"))

here is full message

<>:1: SyntaxWarning: invalid escape sequence '\['
<>:1: SyntaxWarning: invalid escape sequence '\['
ipykernel_21400\1107292206.py:1: SyntaxWarning: invalid escape sequence '\['
  session.evaluate(wlexpr("Complexes \[LongRightArrow] Complexes == Complexes \[LongRightArrow] Complexes"))
True