import "github.com/quickfixgo/quickfix/field" // Create a new field with a text value textField := field.NewTextField(128, "Hello, world!") // Retrieve the field's value as a string textValue := textField.String()In this example, we import the `github.com.quickfixgo.quickfix.field` package and create a new `TextField` object with a field ID of 128 and a text value of "Hello, world!". We then retrieve the field's value as a string using the `String()` method. Other examples of `TextField` usage might include constructing FIX messages programmatically, parsing incoming FIX messages, and validating messages before sending them to a FIX engine.