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import { GraphQLError } from '../error/GraphQLError.d.ts';
import { GraphQLSchema } from './schema.d.ts';
/** * Implements the "Type Validation" sub-sections of the specification's * "Type System" section. * * Validation runs synchronously, returning an array of encountered errors, or * an empty array if no errors were encountered and the Schema is valid. */export function validateSchema(  schema: GraphQLSchema,): ReadonlyArray<GraphQLError>;
/** * Utility function which asserts a schema is valid by throwing an error if * it is invalid. */export function assertValidSchema(schema: GraphQLSchema): void;