import * as pulumi from "@pulumi/pulumi";
import { output as outputs } from "../types";
/**
 * Use this data source to get available HuaweiCloud GeminiDB Cassandra instances.
 *
 * ## Example Usage
 *
 * ```typescript
 * import * as pulumi from "@pulumi/pulumi";
 * import * as huaweicloud from "@pulumi/huaweicloud";
 *
 * const thisCassandraInstances = pulumi.output(huaweicloud.GaussDBforNoSQL.getCassandraInstances({
 *     name: "gaussdb-instance",
 * }));
 * ```
 */
export declare function getCassandraInstances(args?: GetCassandraInstancesArgs, opts?: pulumi.InvokeOptions): Promise<GetCassandraInstancesResult>;
/**
 * A collection of arguments for invoking getCassandraInstances.
 */
export interface GetCassandraInstancesArgs {
    /**
     * Specifies the name of the instance.
     */
    name?: string;
    /**
     * The region in which to obtain the instance. If omitted, the provider-level region will
     * be used.
     */
    region?: string;
    /**
     * Specifies the network ID of a subnet.
     */
    subnetId?: string;
    /**
     * Specifies the VPC ID.
     */
    vpcId?: string;
}
/**
 * A collection of values returned by getCassandraInstances.
 */
export interface GetCassandraInstancesResult {
    /**
     * The provider-assigned unique ID for this managed resource.
     */
    readonly id: string;
    /**
     * An array of available instances.
     */
    readonly instances: outputs.GaussDBforNoSQL.GetCassandraInstancesInstance[];
    /**
     * Indicates the node name.
     */
    readonly name?: string;
    /**
     * The region of the instance.
     */
    readonly region: string;
    /**
     * Indicates the network ID of a subnet.
     */
    readonly subnetId?: string;
    /**
     * Indicates the VPC ID.
     */
    readonly vpcId?: string;
}
export declare function getCassandraInstancesOutput(args?: GetCassandraInstancesOutputArgs, opts?: pulumi.InvokeOptions): pulumi.Output<GetCassandraInstancesResult>;
/**
 * A collection of arguments for invoking getCassandraInstances.
 */
export interface GetCassandraInstancesOutputArgs {
    /**
     * Specifies the name of the instance.
     */
    name?: pulumi.Input<string>;
    /**
     * The region in which to obtain the instance. If omitted, the provider-level region will
     * be used.
     */
    region?: pulumi.Input<string>;
    /**
     * Specifies the network ID of a subnet.
     */
    subnetId?: pulumi.Input<string>;
    /**
     * Specifies the VPC ID.
     */
    vpcId?: pulumi.Input<string>;
}