setFromBase64

neuro.uint8Array.setFromBase64

Instance method on Uint8Array.prototype.

Sets the Uint8Array from a base64-encoded string.

Signatures

setFromBase64(input: { uint8Array: <receiver>; string: string; options?: { alphabet?: "base64" | "base64url" | undefined; lastChunkHandling?: "loose" | "strict" | "stop-before-partial" | undefined; }; prompt?: string }): Promise<{ read: number; written: number; }>

The prompt field is optional. When omitted (or set to an empty string) the wrapper falls back to the native Uint8Array.prototype.setFromBase64 and returns a resolved Promise without contacting the LLM. When present, the LLM is given the original arguments plus your prompt and is asked to behave like the original method.

Example

import { configureClient, neuro } from 'neuro-ts';

configureClient({ apiKey: process.env.OPENAI_API_KEY });

// Uint8Array setFromBase64; in-place decode for streaming.
await neuro.uint8Array.setFromBase64({ uint8Array: view, string: 'aGVsbG8', prompt: 'decode the base64 string straight into the Uint8Array, returning {read, written}, the buffered decode that finally lets streaming parsers stop allocating per chunk' });

System prompt

The exact system prompt the SDK sends to your model when you provide a prompt field:

Generated promptUint8Array.prototype.setFromBase64

You are simulating the JavaScript built-in `Uint8Array.prototype.setFromBase64`.
## Original signature(s)
  Overload 1: (string: string, options?: { alphabet?: "base64" | "base64url" | undefined; lastChunkHandling?: "loose" | "strict" | "stop-before-partial" | undefined; }) => { read: number; written: number; }
## JSDoc
Sets the `Uint8Array` from a base64-encoded string.

## How to respond
- Behave EXACTLY as the original `setFromBase64` would, but use the user's intent to choose any callback / comparator / transform logic that the original would normally accept as an argument.
- Strictly preserve the original return type and shape.
- Output ONLY the JSON-encoded return value of the function call.
- Do NOT include explanations, prose, comments, or markdown fences.
- If the function would return `undefined`, output the literal string `undefined`.
- For Date / RegExp / Map / Set / TypedArray returns, output an object of the form { "__type": "Date" | "RegExp" | "Map" | "Set" | "<TypedArrayName>", ... } so the SDK can rehydrate it.