plane/space/google.d.ts

// google.d.ts
interface GsiButtonConfiguration {
  type: "standard" | "icon";
  theme?: "outline" | "filled_blue" | "filled_black";
  size?: "large" | "medium" | "small";
  text?: "signin_with" | "signup_with" | "continue_with" | "signup_with";
  shape?: "rectangular" | "pill" | "circle" | "square";
  logo_alignment?: "left" | "center";
  width?: number;
  local?: string;
}