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use serde::{Deserialize, Serialize};
#[derive(Default, Debug, Serialize, Deserialize)]
/// Topology is a map of topological domains to topological segments.
/// This description is taken verbatim from the CSI Spec:
///
/// A topological domain is a sub-division of a cluster, like "region",
/// "zone", "rack", etc.
/// A topological segment is a specific instance of a topological domain,
/// like "zone3", "rack3", etc.
/// For example {"com.company/zone": "Z1", "com.company/rack": "R3"}
/// Valid keys have two segments: an OPTIONAL prefix and name, separated
/// by a slash (/), for example: "com.company.example/zone".
/// The key name segment is REQUIRED. The prefix is OPTIONAL.
/// The key name MUST be 63 characters or less, begin and end with an
/// alphanumeric character ([a-z0-9A-Z]), and contain only dashes (-),
/// underscores (_), dots (.), or alphanumerics in between, for example
/// "zone".
/// The key prefix MUST be 63 characters or less, begin and end with a
/// lower-case alphanumeric character ([a-z0-9]), contain only
/// dashes (-), dots (.), or lower-case alphanumerics in between, and
/// follow domain name notation format
/// (https://tools.ietf.org/html/rfc1035#section-2.3.1).
/// The key prefix SHOULD include the plugin's host company name and/or
/// the plugin name, to minimize the possibility of collisions with keys
/// from other plugins.
/// If a key prefix is specified, it MUST be identical across all
/// topology keys returned by the SP (across all RPCs).
/// Keys MUST be case-insensitive. Meaning the keys "Zone" and "zone"
/// MUST not both exist.
/// Each value (topological segment) MUST contain 1 or more strings.
/// Each string MUST be 63 characters or less and begin and end with an
/// alphanumeric character with '-', '_', '.', or alphanumerics in
/// between.
pub struct Topology {
#[serde(rename = "Segments")]
pub segments: Option<std::collections::HashMap<String, String>>,
}