Corrections for some of the DeepEval documentation/help pages

[CAW-nz]

@penguine-ip

There are two separate pages that need to be corrected + one possible addition to cover off an undocumented parameter:

The example under https://docs.confident-ai.com/docs/synthesizer-introduction#filteration-quality
is wrongly referencing Synthesizer(filteration_config=...) when it should be filtration_config. That is removal of "e" in the spelling.

And the object instance probably should consistently be renamed accordingly (to avoid naming confusion).
The full example would become:

from deepeval.synthesizer.config import FiltrationConfig

filtration_config = FiltrationConfig(
  critic_model="gpt-4o",
  synthetic_input_quality_threshold=0.5
)

synthesizer = Synthesizer(filtration_config=filtration_config)

Finally the Title of this section and URL reference to jump to this section should be updated accordingly from:
https://docs.confident-ai.com/docs/synthesizer-introduction#filteration-quality
to
https://docs.confident-ai.com/docs/synthesizer-introduction#filtration-quality
(or similar)

---

The section under https://docs.confident-ai.com/docs/synthesizer-generate-from-docs#customize-context-construction
wrongly references ContextExtractionConfig whereas the actual class in synthesizer/config.py has defined the
class ContextConstructionConfig.

The example and the two related text references in this section need to be updated (eg see the first sentence of this section).
NB: Minor but there is also a typo in the example saying "from deepeval.synthesizer.confg ..." instead of "config".

Summary of updates needed:
The two class name references in this section should be updated, and the full example should be updated from:

from deepeval.synthesizer.confg import ContextExtractionConfig

...
synthesizer.generate_goldens_from_docs(
  document_paths=['example.txt', 'example.docx', 'example.pdf'],
  context_extraction_config=ContextExtractionConfig()
)

To:

from deepeval.synthesizer.config import ContextConstructionConfig

...
synthesizer.generate_goldens_from_docs(
  document_paths=['example.txt', 'example.docx', 'example.pdf'],
  context_construction_config=ContextConstructionConfig()
)

---

There is an undocumented optional parameter for generate_goldens_from_contexts method being source_files that you might like to now document under the relevant section.
URL = https://docs.confident-ai.com/docs/synthesizer-generate-from-contexts#generate-your-goldens

Could add new bullet point:

• [Optional] source_files: a list of strings being the source of the contexts. Length must be aligned with the length of contexts.

(or similar wording)