Optional Readonlyclose?: stringThe closing bracket: one character, or "" for none (m:endChr).
Optional Readonlygrow?: booleanWhether the brackets grow to the height of what they hold (m:grow). LibreOffice and Pages always grow them.
Optional Readonlyopen?: stringThe opening bracket: one character, such as "|" or "⟨", or "" for none (m:begChr).
Optional Readonlyseparator?: stringThe character between items, such as "," (m:sepChr).
Readonlychildren: readonly MathComponent[]What goes between the brackets
Optional Readonlyitems?: neverOptional Readonlychildren?: neverReadonlyitems: readonly (readonly MathComponent[])[]Several things between the brackets, with separator between them, such as ⟨a|b⟩
Options for MathBrackets: the brackets, and what goes between them.