@cfxlabsinc/b2b-services
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    SmsTemplateValidationResult: Readonly<
        {
            invalidReason: string
            | null;
            issues: readonly SmsTemplateIssue[];
            nodes: readonly TemplateNode[];
            valid: boolean;
            warnings: readonly SmsTemplateWarning[];
            worstCase: SmsSegmentInfo | null;
        },
    >