method Visitor.prototype.visitTsTypeParameterDeclarationimport { Visitor } from "https://deno.land/x/lean@0.0.6/lib/deps.ts"; visitTsTypeParameterDeclaration(n: TsTypeParameterDeclaration | undefined): TsTypeParameterDeclaration | undefinedParametersn: TsTypeParameterDeclaration | undefinedReturnsTsTypeParameterDeclaration | undefined