/**
 * Builds a parameterized GraphQL mutation document and its accompanying
 * variables payload. Argument values are passed as GraphQL variables rather
 * than interpolated into the query string, which lets the server coerce and
 * validate them by type (including enums and input objects) and keeps the
 * operation document constant across calls.
 *
 * @param name      The mutation field name, eg `goto`.
 * @param args      Argument values keyed by argument name. `undefined` values
 *                  are dropped. Pass `null` when the mutation takes no args.
 * @param fields    The selection set for the mutation's response.
 * @param argTypes  Map of argument name → GraphQL type (eg `String!`), used to
 *                  declare the operation's variables. Sourced from `ARG_TYPES`.
 * @param operation The GraphQL operation type. Defaults to `mutation`; pass
 *                  `subscription` to build a streaming operation.
 */
export declare function buildOperation(name: string, args: Record<string, unknown> | null, fields: string, argTypes?: Record<string, string>, operation?: 'mutation' | 'subscription'): {
    query: string;
    variables: Record<string, unknown>;
};
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