virtualx-engine/modules/gdscript/tests/scripts/parser/features/signal_declaration.gd

#GDTEST_OK

# No parentheses.
signal a

# No parameters.
signal b()

# With paramters.
signal c(a, b, c)

# With parameters multiline.
signal d(
	a,
	b,
	c,
)

func test():
	print("Ok")