export declare class ProjectCostingListEntryDto {
    project_id: number;
    project_name: string;
    client_name: string;
    jan_cost: number;
    feb_cost: number;
    mar_cost: number;
    apr_cost: number;
    may_cost: number;
    jun_cost: number;
    jul_cost: number;
    aug_cost: number;
    sep_cost: number;
    oct_cost: number;
    nov_cost: number;
    dec_cost: number;
    total_cost: number;
}
export declare class YearRangeDto {
    min_year: number;
    max_year: number;
}
export declare class ProjectCostingListSummaryDto {
    total_projects: number;
    total_cost: number;
    average_cost_per_project: number;
}
export declare class ProjectCostingListResponseDto {
    summary: ProjectCostingListSummaryDto;
    projects: ProjectCostingListEntryDto[];
    year_range: YearRangeDto;
}