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import {  OperationDefinitionNode,  OperationTypeDefinitionNode,} from '../language/ast.d.ts';import { GraphQLSchema } from '../type/schema.d.ts';import { GraphQLObjectType } from '../type/definition.d.ts';
/** * Extracts the root type of the operation from the schema. */export function getOperationRootType(  schema: GraphQLSchema,  operation: OperationDefinitionNode | OperationTypeDefinitionNode,): GraphQLObjectType;