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danavirtual
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Commit
β’
de48798
1
Parent(s):
8b26038
Initial Commit
Browse files- app.py +215 -0
- requirements.txt +3 -0
app.py
ADDED
@@ -0,0 +1,215 @@
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1 |
+
import gradio as gr
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2 |
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import requests
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3 |
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import torch
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4 |
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import transformers
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import einops
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###
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from typing import Any, Dict, Tuple
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import warnings
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import datetime
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import os
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from threading import Event, Thread
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import torch
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from transformers import AutoModelForCausalLM, AutoTokenizer, StoppingCriteria, StoppingCriteriaList, TextIteratorStreamer
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import config
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import textwrap
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+
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INSTRUCTION_KEY = "### Instruction:"
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RESPONSE_KEY = "### Response:"
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END_KEY = "### End"
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INTRO_BLURB = "Below is an instruction that describes a task. Write a response that appropriately completes the request."
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PROMPT_FOR_GENERATION_FORMAT = """{intro}
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{instruction_key}
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{instruction}
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{response_key}
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""".format(
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intro=INTRO_BLURB,
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instruction_key=INSTRUCTION_KEY,
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instruction="{instruction}",
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response_key=RESPONSE_KEY,
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)
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+
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+
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class InstructionTextGenerationPipeline:
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def __init__(
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self,
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model_name,
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torch_dtype=torch.bfloat16,
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trust_remote_code=True,
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use_auth_token=None,
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) -> None:
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self.model = AutoModelForCausalLM.from_pretrained(
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model_name,
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torch_dtype=torch_dtype,
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trust_remote_code=trust_remote_code,
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use_auth_token=use_auth_token,
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)
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+
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tokenizer = AutoTokenizer.from_pretrained(
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model_name,
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trust_remote_code=trust_remote_code,
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use_auth_token=use_auth_token,
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)
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if tokenizer.pad_token_id is None:
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warnings.warn(
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"pad_token_id is not set for the tokenizer. Using eos_token_id as pad_token_id."
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)
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tokenizer.pad_token = tokenizer.eos_token
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tokenizer.padding_side = "left"
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self.tokenizer = tokenizer
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
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self.model.eval()
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self.model.to(device=device, dtype=torch_dtype)
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self.generate_kwargs = {
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"temperature": 0.5,
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"top_p": 0.92,
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"top_k": 0,
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"max_new_tokens": 512,
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"use_cache": True,
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"do_sample": True,
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"eos_token_id": self.tokenizer.eos_token_id,
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"pad_token_id": self.tokenizer.pad_token_id,
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"repetition_penalty": 1.1, # 1.0 means no penalty, > 1.0 means penalty, 1.2 from CTRL paper
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}
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def format_instruction(self, instruction):
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return PROMPT_FOR_GENERATION_FORMAT.format(instruction=instruction)
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def __call__(
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self, instruction: str, **generate_kwargs: Dict[str, Any]
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) -> Tuple[str, str, float]:
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s = PROMPT_FOR_GENERATION_FORMAT.format(instruction=instruction)
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input_ids = self.tokenizer(s, return_tensors="pt").input_ids
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input_ids = input_ids.to(self.model.device)
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gkw = {**self.generate_kwargs, **generate_kwargs}
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with torch.no_grad():
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output_ids = self.model.generate(input_ids, **gkw)
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# Slice the output_ids tensor to get only new tokens
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new_tokens = output_ids[0, len(input_ids[0]) :]
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output_text = self.tokenizer.decode(new_tokens, skip_special_tokens=True)
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return output_text
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##
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from timeit import default_timer as timer
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import time
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import datetime
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from datetime import datetime
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import json
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# create some interactive controls
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import ipywidgets as widgets
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from IPython.display import Markdown, display
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from ipywidgets import Textarea, VBox, HBox
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import sys
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import os
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import os.path as osp
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import pprint
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pp = pprint.PrettyPrinter(indent=4)
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LIBRARY_PATH = "/home/ec2-user/workspace/Notebooks/lib"
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module_path = os.path.abspath(os.path.join(LIBRARY_PATH))
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if module_path not in sys.path:
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sys.path.append(module_path)
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print (f"sys.path : {sys.path}")
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from InstructionTextGenerationPipeline import *
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def complete(state="complete"):
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print(f"\nCell {state} @ {(datetime.datetime.fromtimestamp(time.time()).strftime('%Y-%m-%d %H:%M:%S'))}")
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complete(state='imports done')
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complete(state="start generate")
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generate = InstructionTextGenerationPipeline(
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"mosaicml/mpt-7b-instruct",
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torch_dtype=torch.bfloat16,
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trust_remote_code=True,
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)
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stop_token_ids = generate.tokenizer.convert_tokens_to_ids(["<|endoftext|>"])
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complete(state="Model generated")
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# Define a custom stopping criteria
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class StopOnTokens(StoppingCriteria):
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def __call__(self, input_ids: torch.LongTensor, scores: torch.FloatTensor, **kwargs) -> bool:
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for stop_id in stop_token_ids:
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if input_ids[0][-1] == stop_id:
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return True
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return False
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def process_stream(instruction, temperature, top_p, top_k, max_new_tokens):
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# Tokenize the input
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input_ids = generate.tokenizer(
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generate.format_instruction(instruction), return_tensors="pt"
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).input_ids
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input_ids = input_ids.to(generate.model.device)
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# Initialize the streamer and stopping criteria
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streamer = TextIteratorStreamer(
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generate.tokenizer, timeout=10.0, skip_prompt=True, skip_special_tokens=True
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)
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stop = StopOnTokens()
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158 |
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if temperature < 0.1:
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temperature = 0.0
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do_sample = False
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else:
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do_sample = True
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gkw = {
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**generate.generate_kwargs,
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**{
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"input_ids": input_ids,
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"max_new_tokens": max_new_tokens,
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"temperature": temperature,
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"do_sample": do_sample,
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"top_p": top_p,
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"top_k": top_k,
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"streamer": streamer,
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"stopping_criteria": StoppingCriteriaList([stop]),
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},
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}
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response = ''
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+
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def generate_and_signal_complete():
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generate.model.generate(**gkw)
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t1 = Thread(target=generate_and_signal_complete)
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t1.start()
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for new_text in streamer:
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response += new_text
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return response
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gr.close_all()
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def tester(uPrompt, max_new_tokens, temperature, top_k, top_p):
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salutation = uPrompt
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response = process_stream(uPrompt, temperature, top_p, top_k, max_new_tokens)
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results = f"{salutation} max_new_tokens{max_new_tokens}; temperature{temperature}; top_k{top_k}; top_p{top_p}; "
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return response
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config.init_device="meta"
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+
demo = gr.Interface(
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fn=tester,
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inputs=[gr.Textbox(label="Prompt",info="Prompt",lines=3,value="Provide Prompt"),
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gr.Slider(256, 3072,value=1024, step=256, label="Tokens" ),
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gr.Slider(0.0, 1.0, value=0.1, step=0.1, label='temperature:'),
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gr.Slider(0, 1, value=0, step=1, label='top_k:'),
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gr.Slider(0.0, 1.0, value=0.0, step=0.05, label='top_p:')
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],
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outputs=["text"],
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)
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demo.launch(share=True,
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server_name="0.0.0.0",
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server_port=8081
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)
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requirements.txt
ADDED
@@ -0,0 +1,3 @@
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1 |
+
gradio
|
2 |
+
transformers
|
3 |
+
einops
|