Llama bt update

[HamidShojanazeri]

Description

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Please include a summary of the feature or issue being fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes #(issue)
Add better transformer

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Feature/Issue validation/testing

Please describe the Unit or Integration tests that you ran to verify your changes and relevant result summary. Provide instructions so it can be reproduced.
Please also list any relevant details for your test configuration.

Test:
curl http://localhost:8081/models
{
"models": [
{
"modelName": "llama2-70b-chat",
"modelUrl": "llama2-70b-chat"
}
]
}

curl -v "http://localhost:8080/predictions/llama2-70b-chat" -T sample_text.txt
what is the recipe of mayonnaise?

Answer: Mayonnaise is a thick, creamy condiment made from a mixture of egg yolks, oil, vinegar or lemon juice, a

Checklist:

• Did you have fun?
• Have you added tests that prove your fix is effective or that this feature works?
• Has code been commented, particularly in hard-to-understand areas?
• Have you made corresponding changes to the documentation?

[codecov]

Codecov Report

Merging #2700 (1affa5f) into master (447f3ef) will not change coverage.
The diff coverage is n/a.

❗ Current head 1affa5f differs from pull request most recent head a8eb435. Consider uploading reports for the commit a8eb435 to get more accurate results

@@           Coverage Diff           @@
##           master    #2700   +/-   ##
=======================================
  Coverage   72.44%   72.44%           
=======================================
  Files          85       85           
  Lines        3963     3963           
  Branches       58       58           
=======================================
  Hits         2871     2871           
  Misses       1088     1088           
  Partials        4        4           

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