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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 view_global_gmfs(token, dstore):
 """ Display GMFs averaged on everything for debugging purposes """

    imtls = dstore['oqparam'].imtls
    row = dstore['gmf_data/data']['gmv'].mean(axis=0)
    return rst_table([row], header=imtls)