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The Input Type is solely used to tell the Media Manager and Video Portal how to gather input from a user. If a Draft - Filter is not a Visible filter, then the Input type is irrelevant.
The available input types depend on the selected Draft - Comparison Type. See Comparison Type - input Type and Comparison Type - Value Type combinations for the relationship between Comparison Types and Input Types.
The Input Type of a filter is defined during creation of a filter:
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