How to use the apache-arrow/Arrow.es5.min.Schema function in apache-arrow

function getArrowSchema(schema) {
  const arrowFields = [];
  for (const key in schema) {
    const field = schema[key];
    if (field.type === Float32Array) {
      const metadata = field; // just store the original field as metadata
      // arrow: new Field(name, nullable, metadata)
      const arrowField = new Field(field.name, Float32, field.nullable, metadata);
      arrowFields.push(arrowField);
    }
  }
  if (arrowFields.length === 0) {
    throw new Error('No arrow convertable fields');
  }

  return new Schema(arrowFields);
}