A numeric value specifying the HDF5 API version to use (e.g.,
114 for v1.14), or the string "latest". This adds a preprocessor
directive like -DH5_USE_114_API_DEFAULT to ensure that the compiled
code uses symbols compatible with a specific version of the HDF5 API.
This is useful for maintaining compatibility with older HDF5 versions.
Supported values are 200, 114, 112, 110, 18, and 16. Defaults
to "latest", which corresponds to the newest supported API version.