Document DataGranule "umm" and "meta" members

[MattF-NSIDC]

Follow-up from #367.

Granules have granule["umm"] and granule["meta"] members that are not currently documented. What's the best way to document this? Expose them in a way that our autodoc gets it? Or write a how-to? Both?

[andypbarrett]

The UMM and Metadata components are/should be documented elsewhere. If they are documented elsewhere, I don't think earthaccess needs to document what these metadata components are. Maybe just link to other online resources. However, we should expose/demonstrate how to access these.

Would something as simple as granules["umm"].keys() do the job. Along with dome common use cases such as the xml example here.

[mfisher87]

However, we should expose/demonstrate how to access these.

💯 Agreed we shouldn't document the structure of the data, just how to access the attributes from earthaccess!

[jessnicwelch]

However, we should expose/demonstrate how to access these.

💯 Agreed we shouldn't document the structure of the data, just how to access the attributes from earthaccess!

I also agree... better to maintain only one source. If you know already, could you say where these members are used in the earthaccess guide and a link to the source material?

[mfisher87]

I don't believe we have any documentation that references these attributes. Yet :)