import { type ValueOf } from "../../type.utils.js";
/**
 * Enumeration of header value types supported in message headers.
 * Each type maps to a numeric identifier for wire protocol encoding.
 */
export declare const HeaderKind: {
    readonly Raw: 1;
    readonly String: 2;
    readonly Bool: 3;
    readonly Int8: 4;
    readonly Int16: 5;
    readonly Int32: 6;
    readonly Int64: 7;
    readonly Int128: 8;
    readonly Uint8: 9;
    readonly Uint16: 10;
    readonly Uint32: 11;
    readonly Uint64: 12;
    readonly Uint128: 13;
    readonly Float: 14;
    readonly Double: 15;
};
/** Type alias for the HeaderKind object */
export type HeaderKind = typeof HeaderKind;
/** String literal type of header kind names */
export type HeaderKindId = keyof HeaderKind;
/** Numeric values of header kinds */
export type HeaderKindValue = ValueOf<HeaderKind>;
/** Reverse mapping from numeric value to header kind name */
export declare const ReverseHeaderKind: Record<2 | 1 | 10 | 11 | 12 | 13 | 14 | 3 | 4 | 5 | 8 | 6 | 7 | 9 | 15, "Raw" | "String" | "Bool" | "Int8" | "Int16" | "Int32" | "Int64" | "Int128" | "Uint8" | "Uint16" | "Uint32" | "Uint64" | "Uint128" | "Float" | "Double">;
/** Returns expected byte size for a header kind, or -1 for variable-size kinds */
export declare const expectedSize: (kind: number) => number;
/** Raw binary header value */
export type HeaderValueRaw = {
    kind: HeaderKind["Raw"];
    value: Buffer;
};
/** String header value */
export type HeaderValueString = {
    kind: HeaderKind["String"];
    value: string;
};
/** Boolean header value */
export type HeaderValueBool = {
    kind: HeaderKind["Bool"];
    value: boolean;
};
/** Signed 8-bit integer header value */
export type HeaderValueInt8 = {
    kind: HeaderKind["Int8"];
    value: number;
};
/** Signed 16-bit integer header value */
export type HeaderValueInt16 = {
    kind: HeaderKind["Int16"];
    value: number;
};
/** Signed 32-bit integer header value */
export type HeaderValueInt32 = {
    kind: HeaderKind["Int32"];
    value: number;
};
/** Signed 64-bit integer header value */
export type HeaderValueInt64 = {
    kind: HeaderKind["Int64"];
    value: bigint;
};
/** Signed 128-bit integer header value */
export type HeaderValueInt128 = {
    kind: HeaderKind["Int128"];
    value: Buffer;
};
/** Unsigned 8-bit integer header value */
export type HeaderValueUint8 = {
    kind: HeaderKind["Uint8"];
    value: number;
};
/** Unsigned 16-bit integer header value */
export type HeaderValueUint16 = {
    kind: HeaderKind["Uint16"];
    value: number;
};
/** Unsigned 32-bit integer header value */
export type HeaderValueUint32 = {
    kind: HeaderKind["Uint32"];
    value: number;
};
/** Unsigned 64-bit integer header value */
export type HeaderValueUint64 = {
    kind: HeaderKind["Uint64"];
    value: bigint;
};
/** Unsigned 128-bit integer header value */
export type HeaderValueUint128 = {
    kind: HeaderKind["Uint128"];
    value: Buffer;
};
/** 32-bit floating point header value */
export type HeaderValueFloat = {
    kind: HeaderKind["Float"];
    value: number;
};
/** 64-bit floating point (double) header value */
export type HeaderValueDouble = {
    kind: HeaderKind["Double"];
    value: number;
};
/** Header key with raw bytes */
export type HeaderKeyRaw = {
    kind: HeaderKind["Raw"];
    value: Buffer;
};
/** Header key with string value */
export type HeaderKeyString = {
    kind: HeaderKind["String"];
    value: string;
};
/** Header key with Int32 value */
export type HeaderKeyInt32 = {
    kind: HeaderKind["Int32"];
    value: number;
};
/** Union type of all possible header key types */
export type HeaderKey = HeaderKeyRaw | HeaderKeyString | HeaderKeyInt32;
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