/**
 * Use this attribute to represent the source of a span.
 * Should be one of: custom, url, route, view, component, task, unknown
 *
 */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_SOURCE = "sentry.source";
/**
 * Use this attribute to represent the sample rate used for a span.
 */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_SAMPLE_RATE = "sentry.sample_rate";
/**
 * Use this attribute to represent the operation of a span.
 */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_OP = "sentry.op";
/**
 * Use this attribute to represent the origin of a span.
 */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN = "sentry.origin";
/** The reason why an idle span finished. */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_IDLE_SPAN_FINISH_REASON = "sentry.idle_span_finish_reason";
/** The unit of a measurement, which may be stored as a TimedEvent. */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_MEASUREMENT_UNIT = "sentry.measurement_unit";
/** The value of a measurement, which may be stored as a TimedEvent. */
export declare const SEMANTIC_ATTRIBUTE_SENTRY_MEASUREMENT_VALUE = "sentry.measurement_value";
/**
 * The id of the profile that this span occured in.
 */
export declare const SEMANTIC_ATTRIBUTE_PROFILE_ID = "sentry.profile_id";
export declare const SEMANTIC_ATTRIBUTE_EXCLUSIVE_TIME = "sentry.exclusive_time";
export declare const SEMANTIC_ATTRIBUTE_CACHE_HIT = "cache.hit";
export declare const SEMANTIC_ATTRIBUTE_CACHE_KEY = "cache.key";
export declare const SEMANTIC_ATTRIBUTE_CACHE_ITEM_SIZE = "cache.item_size";
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