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node_modules/graphql/utilities/assertValidName.d.ts

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+import { GraphQLError } from '../error/GraphQLError';
+import { ASTNode } from '../language/ast';
+
+/**
+ * Upholds the spec rules about naming.
+ */
+export function assertValidName(name: string): string;
+
+/**
+ * Returns an Error if a name is invalid.
+ */
+export function isValidNameError(
+  name: string,
+  node?: ASTNode | undefined,
+): GraphQLError | undefined;