Final answer:
The maxvals argument is used to define the maximum number of values that can be stored in a data structure or variable.
Step-by-step explanation:
The maxvals argument is used in computer programming to define the maximum number of values that can be stored in a specific data structure or variable. It is often used in arrays or lists to limit the number of elements that can be added. For example, if an array is created with a maxvals argument of 10, then only 10 values can be stored in that array. Any attempt to add more than 10 values will result in an error.