Fix #3555260: Added underscore prefixes and updated deprecated function calls

Sagar Sonawanerequested to merge
issue/name-3555260:3555260-fix into 8.x-1.x

Closes #3555260 by:

  • Adding underscore-prefixed copies of the required procedural functions.
  • Marked the original functions as deprecated, returning the new function calls within.
  • Updated deprecated function calls throughout the module code.

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