Where can I get information on all mixins for SASS?

Question

css

Good afternoon!
Decided to make my first project using sass/scss. Installed compass. Created a bootstrap project.
Now I'm trying to make a file of my styles and I can't figure out where to get information on all mixins. For example, I need to do transition, I inserted @include transition (all .4s ease-out);
it. It’s somehow difficult to search for all this information, but I can’t find it on the site at all. I was looking for how to do it grayscale, in the end I wrote my own mixin

@mixin grayscale_element($value) {
    -webkit-filter: #{"grayscale(#{$value})"};
    -moz-filter: #{"grayscale(#{$value})"};
    filter:#{"grayscale(#{$value})"};
}

Googling the software sass mixin grayscaleonly leads to compass or stackoverflow. Another search for @include border-radius (20px);led to nowhere, writes Syntax error: Undefined mixin 'border-radius'.. Do I have to write everything myself? Then what's the point in making a library of blanks for yourself and using it in every project? Isn't that what frameworks are for?
Maybe I'm using sass somehow wrong?

Answer 1

Compass is full of mixins - compass-style.org/index/mixins