mkdir -p /tmp/mdd && cd /tmp/mdd
uv run python - << 'PY'
print('id: https://example.org/big')
print('name: big')
print('prefixes:')
print(' linkml: https://w3id.org/linkml/')
print('imports:')
print(' - linkml:types')
print('default_range: string')
print('classes:')
print(' Base:')
print(' attributes:')
print(' id:')
print(' identifier: true')
for i in range(500):
 print(f' Klass{i}:')
 print(f' is_a: Base')
 print(f' attributes:')
 print(f' ref:')
 print(f' range: Klass{(i+1) % 500}')
PY > schema.yaml
time uv run gen-markdown-datadict schema.yaml -d out # many minutes