H5T.array_create
Create a new array datatype object.
base_type_id is the datatype of every element of the array, i.e., of the number at each position in the array.
rank is the number of dimensions and the size of each dimension is
specified in the array dims. The value of rank is currently limited
to 'H5S_MAX_RANK'
and must be greater than 0 (zero). All dimension
sizes specified in dims must be greater than 0 (zero).
See also: H5T.close
Source Code: H5T.array_create