* Get the value for the key 'rate.limit.retry.after.seconds'. <br>
     * The value is, e.g. 60 <br>
     * comment: Retry-After header value in seconds.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getRateLimitRetryAfterSeconds();

    /**
     * Get the value for the key 'rate.limit.retry.after.seconds' as {@link Integer}. <br>

ropdown-toggle),\n  > .btn.dropdown-toggle-split:first-child,\n  > .btn-group:not(:last-child) > .btn {\n    @include border-end-radius(0);\n  }\n\n  // The left radius should be 0 if the button is:\n  // - the \"third or more\" child\n  // - the second child and the previous element isn't `.btn-check` (making it the first child visually)\n  // - part of a btn-group which isn't the first child\n  > .btn:nth-child(n + 3),\n  > :not(.btn-check) + .btn,\n  > .btn-group:not(:first-child) > .btn {\n ...

dash, nbsp\n  }\n}\n","// Lists\n\n// Unstyled keeps list items block level, just removes default browser padding and list-style\n@mixin list-unstyled() {\n  padding-left: 0;\n  list-style: none;\n}\n","// Responsive images (ensure images don't scale beyond their parents)\n//\n// This is purposefully opt-in via an explicit class rather than being the default for all `<img>`s.\n// We previously tried the \"images are responsive by default\" approach in Bootstrap v2,\n// and abandoned it in Bootstrap v3...