import type { GenFile, GenMessage } from "@bufbuild/protobuf/codegenv1";
import type { FileDescriptorSet } from "../common/descriptor_pb";
import type { Message } from "@bufbuild/protobuf";
/**
 * Describes the file protos/perfetto/trace/extension_descriptor.proto.
 */
export declare const file_protos_perfetto_trace_extension_descriptor: GenFile;
/**
 * This message contains descriptors used to parse extension fields of
 * TrackEvent.
 *
 * See docs/design-docs/extensions.md for more details.
 *
 * @generated from message perfetto.protos.ExtensionDescriptor
 */
export type ExtensionDescriptor = Message<"perfetto.protos.ExtensionDescriptor"> & {
    /**
     * @generated from field: optional perfetto.protos.FileDescriptorSet extension_set = 1;
     */
    extensionSet?: FileDescriptorSet;
};
/**
 * Describes the message perfetto.protos.ExtensionDescriptor.
 * Use `create(ExtensionDescriptorSchema)` to create a new message.
 */
export declare const ExtensionDescriptorSchema: GenMessage<ExtensionDescriptor>;
//# sourceMappingURL=extension_descriptor_pb.d.ts.map