```javascript
const file = `query {
  getUsers {
    name
    age
  }
}

mutation {
  addUser(name: "John", age: 32) {
    name
    age
  }
}`

const regex = /(query|mutation)\s*\{\s*[\w\s\(\)\:\,]+\s*\}/g
const matches = file.match(regex)

console.log(matches)
// Output: [ 'query {\n  getUsers {\n    name\n    age\n  }\n}', 'mutation {\n  addUser(name: "John", age: 32) {\n    name\n    age\n  }\n}' ]
```

In this example using JavaScript, the variable file holds the text to be searched for GraphQL queries or mutations. The regex variable holds the regular expression described above. The match() method is called on the file variable, passing in the regex variable as an argument. The result of this call is an array of all matches found in the file text. In this case, the output will show two matches, one for the query and one for the mutation.
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