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node_modules/graphql/utilities/findDeprecatedUsages.d.ts

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+import { GraphQLError } from '../error/GraphQLError';
+import { DocumentNode } from '../language/ast';
+import { GraphQLSchema } from '../type/schema';
+
+/**
+ * A validation rule which reports deprecated usages.
+ *
+ * Returns a list of GraphQLError instances describing each deprecated use.
+ */
+export function findDeprecatedUsages(
+  schema: GraphQLSchema,
+  ast: DocumentNode,
+): GraphQLError[];