Function unsupportedContent

packages/llm/src/protocols/shared.ts:296–300

(
  route: string,
  role: LLMRequest["messages"][number]["role"],
  types: ReadonlyArray<ContentType>,
)

): part is Extract<ContentPart, { readonly type: Type }> => (types as ReadonlyArray<ContentType>).includes(part.type)

export const unsupportedContent = (
  route: string,
  role: LLMRequest["messages"][number]["role"],
  types: ReadonlyArray<ContentType>,
) => invalidRequest(`${route} ${role} messages only support ${formatContentTypes(types)} content for now`)

/**
 * Build a `validate` step from a Schema decoder. Replaces the per-route