Initialisation

Added the packages and files for the backend server

node_modules/graphql/validation/rules/UniqueArgumentDefinitionNamesRule.d.ts

@@ -0,0 +1,11 @@
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
+/**
+ * Unique argument definition names
+ *
+ * A GraphQL Object or Interface type is only valid if all its fields have uniquely named arguments.
+ * A GraphQL Directive is only valid if all its arguments are uniquely named.
+ */
+export declare function UniqueArgumentDefinitionNamesRule(
+  context: SDLValidationContext,
+): ASTVisitor;