[BUG] Attribute model_name is not defined in TeiEndpointEmbeddings

[r0kk]

Description

There is an issue, if one would like to add TeiEndpointEmbeddings, because the database expect model_name, which is missing in TeiEndpointEmbeddings definition.

Error screenshoot:

It works if we add model_name placeholder to the TeiEndpointEmbeddings like this:

Reproduction steps

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Screenshots

![DESCRIPTION](LINK.png)

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Additional information

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