Initialisation

Added the packages and files for the backend server

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

@@ -0,0 +1,12 @@
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
+/**
+ * Variables in allowed position
+ *
+ * Variable usages must be compatible with the arguments they are passed to.
+ *
+ * See https://spec.graphql.org/draft/#sec-All-Variable-Usages-are-Allowed
+ */
+export declare function VariablesInAllowedPositionRule(
+  context: ValidationContext,
+): ASTVisitor;