@import: 'file';
	$something: null !global;
	$url: 'www.url.com' !default;

	%truth {
		color: forestgreen !important;
	}

	@mixin awesomeStyles ($url) {
		background: url($url);
	}

	@function doSomething() {
		@warn 'Doing something!';
		@return lightness(rebeccapurple);
	}

	/* multiline comment begins here

	and ends here */

	.class[data*=data] {
		@include awesomeStyles($url);
		@if ($something == true) {
			@extend %truth;
		} @else {
			@error 'That\'s not true'; //debatable
		}

		&:before {
			margin: 20px;
		}

		#id {
			background: doSomething();
		}
	}