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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def install_npm_modules():
 """Uses npm to dependencies in node.json"""

    # This is a little weird, but we do it this way because if you
    # have package.json, then heroku thinks this might be a node.js
    # app.
    call_command('cp node.json package.json', verbose=True)
    call_command('npm install', verbose=True)
    call_command('rm package.json', verbose=True)