Initialisation

Added the packages and files for the backend server

node_modules/graphql/validation/rules/custom/NoDeprecatedCustomRule.d.ts

@@ -0,0 +1,15 @@
+import type { ASTVisitor } from '../../../language/visitor';
+import type { ValidationContext } from '../../ValidationContext';
+/**
+ * No deprecated
+ *
+ * A GraphQL document is only valid if all selected fields and all used enum values have not been
+ * deprecated.
+ *
+ * Note: This rule is optional and is not part of the Validation section of the GraphQL
+ * Specification. The main purpose of this rule is detection of deprecated usages and not
+ * necessarily to forbid their use when querying a service.
+ */
+export declare function NoDeprecatedCustomRule(
+  context: ValidationContext,
+): ASTVisitor;