You're seeing just the function indic_syllabic_category, go back to Unicode.IndicSyllabicCategory module for more information.
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Returns the indic syllabic category name(s) for the given binary or codepoint.

In the case of a codepoint, a single indic syllabic category name is returned.

For a binary a list of distinct indic syllabic category names represented by the lines in the binary is returned.