API: Add weakenEffect to formulas.hacking namespace (#2626)

markdown/bitburner.hackingformulas.weakeneffect.md

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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [HackingFormulas](./bitburner.hackingformulas.md) &gt; [weakenEffect](./bitburner.hackingformulas.weakeneffect.md)
+
+## HackingFormulas.weakenEffect() method
+
+Calculate the security decrease from a weaken operation. Unlike other hacking formulas, weaken effect depends only on thread count and core count, not on server or player properties. The core bonus formula is .
+
+**Signature:**
+
+```typescript
+weakenEffect(threads: number, cores?: number): number;
+```
+
+## Parameters
+
+<table><thead><tr><th>
+
+Parameter
+
+
+</th><th>
+
+Type
+
+
+</th><th>
+
+Description
+
+
+</th></tr></thead>
+<tbody><tr><td>
+
+threads
+
+
+</td><td>
+
+number
+
+
+</td><td>
+
+Number of threads running weaken.
+
+
+</td></tr>
+<tr><td>
+
+cores
+
+
+</td><td>
+
+number
+
+
+</td><td>
+
+_(Optional)_ Number of cores on the host server. Default 1.
+
+
+</td></tr>
+</tbody></table>
+
+**Returns:**
+
+number
+
+The security decrease amount.
+