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from smolagents import Tool
from youtube_transcript_api import YouTubeTranscriptApi
class YouTubeTranscriptionTool(Tool):
"""
Tool to fetch the transcript of a YouTube video given its URL.
Args:
video_url (str): YouTube video URL.
Returns:
str: Transcript of the video as a single string.
"""
name = "youtube_transcription"
description = "Fetches the transcript of a YouTube video given its URL"
inputs = {
"video_url": {"type": "string", "description": "YouTube video URL"},
}
output_type = "string"
def forward(self, video_url: str) -> str:
video_id = video_url.strip().split("v=")[-1]
transcript = YouTubeTranscriptApi.get_transcript(video_id)
return " ".join([entry["text"] for entry in transcript])
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