They correspond to the values of arrow::compute::Utf8NormalizeOptions::Form.
arrow::compute::Utf8NormalizeOptions::Form
Normalization Form Canonical Composition.
Normalization Form Canonical Decomposition.
Normalization Form Compatibility Composition.
Normalization Form Compatibility Decomposition.
They correspond to the values of
arrow::compute::Utf8NormalizeOptions::Form
.