Polyaxon CLI should raise an error for invalid input/ouputs names with dots .

[polyaxon-team]

Current behavior

The CLI currently allows users to pass inputs/outputs with dots ., also the platform allows the run to be scheduled. However the interpolation engine does not allow reusing the param's variable name, especially when using DAGs or Joins, since the parser uses the dot . get extract the variables required.

Enhancement

There are two options:

• Add a validation on the parsing level to show an error to the user before they submit the operation to the platform, to prevent any confusion.
• Allow using [] as an alternative solution to getting params/inputs/outputs values instead of . and update the documentation to show how it can be used.