#3037 [Core feature] [Flytekit] Add support for HDF5 and Arrow in flyteplugins-vaex Issue created by ryankarlos ### Motivation: Why do you think this is important? Currently

flyteplugins-vaex

supports automatic serialization and deserialization of vaex dataframe between consecutive tasks using parquet flyteorg/flytekit#1230 It would be good to extend this to HDF5 and arrow for performance and interoperability, when data sets are too large to fit into memory https://vaex.readthedocs.io/en/latest/faq.html#What-is-the-optimal-file-format-to-use-with-vaex ### Goal: What should the final outcome look like, ideally? Register extra handlers

VaexDataFrameToHDF5EncodingHandler

and

VaexDataFrameToArrowEncodingHandler

, so users can use

Annotated

to update the default format:

@task
def t1(f: vaex.dataframe.DataFrameLocal) -> Annotated[StructuredDataset, HDF5]

@task
def t2(f: vaex.dataframe.DataFrameLocal) -> Annotated[StructuredDataset, Arrow]

### Describe alternatives you've considered N/A ### Propose: Link/Inline OR Additional context See discussion thread here flyteorg/flytekit#1230 (comment) ### Are you sure this issue hasn't been raised already? • Yes ### Have you read the Code of Conduct? • Yes flyteorg/flyte