type SystemBlock = {
    type: "text";
    text: string;
} & Record<string, unknown>;
export type ClaudeCodeSystemInput = {
    readonly system: unknown;
    readonly model: unknown;
    readonly messages: unknown;
};
export declare function composeClaudeCodeSystem(input: ClaudeCodeSystemInput): SystemBlock[];
export declare function composeClaudeCodeOAuthSystem(input: ClaudeCodeSystemInput): SystemBlock[];
export {};