sanity/src/core/util/isNonNullable.ts

Sanity is a real-time content infrastructure with a scalable, hosted backend featuring a Graph Oriented Query Language (GROQ), asset pipelines and fast edge caches

/**
 * @internal
 */
export function isNonNullable<T>(value: T): value is NonNullable<T> {
  return value !== null && value !== undefined
}