Statement.DeclareExportDeclarationtype ('M, 'T) declaration = | Variable of 'M * ('M, 'T) DeclareVariable.t| Function of 'M * ('M, 'T) DeclareFunction.t| Class of 'M * ('M, 'T) DeclareClass.t| DefaultType of ('M, 'T) Type.t| NamedType of 'M * ('M, 'T) TypeAlias.t| NamedOpaqueType of 'M * ('M, 'T) OpaqueType.t| Interface of 'M * ('M, 'T) Interface.tand ('M, 'T) t = {default : 'M option;declaration : ('M, 'T) declaration option;specifiers : 'M ExportNamedDeclaration.specifier option;source : ('M * 'M StringLiteral.t) option;comments : ('M, unit) Syntax.t option;}