import type { ContentType } from '@scalar/types/legacy';
import type { Operation } from '../entities/spec/index.js';
/**
 * Get the request body from the operation.
 */
export declare function getRequestBodyFromOperation(operation: Pick<Operation, 'requestBody' | 'parameters'>, selectedExampleKey?: string | number, omitEmptyAndOptionalProperties?: boolean): {
    mimeType: ContentType;
    text?: string | undefined;
    params?: {
        name: string;
        value?: string | File;
    }[];
} | null;
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