export namespace constants {
  const attentionSideBefore: number
  const attentionSideAfter: number
  const atxHeadingOpeningFenceSizeMax: number
  const autolinkDomainSizeMax: number
  const autolinkSchemeSizeMax: number
  const cdataOpeningString: string
  const characterGroupWhitespace: number
  const characterGroupPunctuation: number
  const characterReferenceDecimalSizeMax: number
  const characterReferenceHexadecimalSizeMax: number
  const characterReferenceNamedSizeMax: number
  const codeFencedSequenceSizeMin: number
  const contentTypeDocument: string
  const contentTypeFlow: string
  const contentTypeContent: string
  const contentTypeString: string
  const contentTypeText: string
  const hardBreakPrefixSizeMin: number
  const htmlRaw: number
  const htmlComment: number
  const htmlInstruction: number
  const htmlDeclaration: number
  const htmlCdata: number
  const htmlBasic: number
  const htmlComplete: number
  const htmlRawSizeMax: number
  const linkResourceDestinationBalanceMax: number
  const linkReferenceSizeMax: number
  const listItemValueSizeMax: number
  const numericBaseDecimal: number
  const numericBaseHexadecimal: number
  const tabSize: number
  const thematicBreakMarkerCountMin: number
  const v8MaxSafeChunkSize: number
}