The morph run command is used to execute Morph source code. 
$ morph run example_python

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Arguments

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--data [key]=[value] | -d [key]=[value]
str
The -d option allows you to specify argument values when executing Morph source code.You can dynamically change the runtime values by providing the arguments specified in @morph.variables.
$ morph run example_python -d age=20