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## collections.after_each
<pre>
collections.after_each(<a href="#collections.after_each-separator">separator</a>, <a href="#collections.after_each-iterable">iterable</a>)
</pre>
Inserts `separator` after each item in `iterable`.
### Parameters
<table class="params-table">
<colgroup>
<col class="col-param" />
<col class="col-description" />
</colgroup>
<tbody>
<tr id="collections.after_each-separator">
<td><code>separator</code></td>
<td>
required.
<p>
The value to insert after each item in `iterable`.
</p>
</td>
</tr>
<tr id="collections.after_each-iterable">
<td><code>iterable</code></td>
<td>
required.
<p>
The list into which to intersperse the separator.
</p>
</td>
</tr>
</tbody>
</table>
## collections.before_each
<pre>
collections.before_each(<a href="#collections.before_each-separator">separator</a>, <a href="#collections.before_each-iterable">iterable</a>)
</pre>
Inserts `separator` before each item in `iterable`.
### Parameters
<table class="params-table">
<colgroup>
<col class="col-param" />
<col class="col-description" />
</colgroup>
<tbody>
<tr id="collections.before_each-separator">
<td><code>separator</code></td>
<td>
required.
<p>
The value to insert before each item in `iterable`.
</p>
</td>
</tr>
<tr id="collections.before_each-iterable">
<td><code>iterable</code></td>
<td>
required.
<p>
The list into which to intersperse the separator.
</p>
</td>
</tr>
</tbody>
</table>
## collections.uniq
<pre>
collections.uniq(<a href="#collections.uniq-iterable">iterable</a>)
</pre>
Returns a list of unique elements in `iterable`.
Requires all the elements to be hashable.
### Parameters
<table class="params-table">
<colgroup>
<col class="col-param" />
<col class="col-description" />
</colgroup>
<tbody>
<tr id="collections.uniq-iterable">
<td><code>iterable</code></td>
<td>
required.
<p>
An iterable to filter.
</p>
</td>
</tr>
</tbody>
</table>
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