@maplibre/maplibre-gl-style-spec/src/validate/validate_image.ts

a specification for maplibre styles

import {validateExpression} from './validate_expression';
import {validateString} from './validate_string';

export function validateImage(options: any) {
    if (validateString(options).length === 0) {
        return [];
    }

    return validateExpression(options);
}