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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 getCatalogDefinitions():
 """ Returns a dictionary with catalogs definitions. """

    final = {}
    analysis_request = bika_catalog_analysisrequest_listing_definition
    analysis = bika_catalog_analysis_listing_definition
    autoimportlogs = bika_catalog_autoimportlogs_listing_definition
    worksheet = bika_catalog_worksheet_listing_definition
    report = bika_catalog_report_definition
    # Merging the catalogs
    final.update(analysis_request)
    final.update(analysis)
    final.update(autoimportlogs)
    final.update(worksheet)
    final.update(report)
    return final