is there a way to escape # when writing Mixins in SASS? - sass

Question

I am trying to write a mixin for animations in css3. An animation in css3 requires an #keyframe. But a mixin declaration in SASS (and other declarations) start with # too. Like #mixin, #for, etc... So what I was trying to do writing a mixin for an animation (I was trying to have all automated inside the mixin) was to put the #keyfram escaped for SASS when passed to CSS not to interpret the #keyframe's #. Is it possible to do this?
Example :
#mixin animation(
//variables :
$mykeyframe:mykeyframe,
$prop1:background,
$value1-i:white,
$value1-e:red,
$prop2:color,
$value2-i:black,
$value2-e:white,
$prop3:font-weight,
$value3-i:400,
$value3-e:bold,
$time:5s,
$iteration-count:1,
$timing-function:linear,
$delay:0s,
$direction:normal,
$play-state:running
)
{//HERE'S THE PROBLEM :
#keyframes $mykeyframe{
0%{$prop1:$value1-i; $prop2:$value2-i; $prop3:$value3-i}
100%{$prop1:$value1-e; $prop2:$value2-e; $prop3:$value3-e}
}
-webkit-animation: $mykeyframe $time $iteration-count; /* Chrome, Safari 5+ */
-moz-animation: $mykeyframe $time $iteration-count; /* Firefox 5-15 */
-o-animation: $mykeyframe $time $iteration-count; /* Opera 12.00 */
animation: $mykeyframe $time $iteration-count; /* Chrome, Firefox 16+, IE 10+, Opera 12.10+ */
/* Chrome, Firefox 16+, IE 10+, Opera 12.10+ */
animation-timing-function: $timing-function;
animation-delay: $delay;
animation-direction: $direction;
animation-play-state: $play-state;
/* Safari and Chrome: */
-webkit-animation-timing-function: $timing-function;
-webkit-animation-delay: $delay;
-webkit-animation-direction: $direction;
-webkit-animation-play-state: $play-state;
}

Answer 1

Even though the mixin (#mixin) and conditional (#for, #if etc.) directives in SASS start with the symbol #, you can still use it for other keywords that are not part of the SASS library like if, mixin etc.
So, you can still do:
#mixin animation($mykeyframe:mykeyframe) {
#keyframes $mykeyframe {
}
}
body {
#include animation(someframe);
}
and this will generate:
body {
#keyframes someframe {}
}