Method List
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    #_h H::ActiveRecordExtensions
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    date_to H
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    declare_auto_field_with_units H::Fields
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    declare_auto_field_without_units H::Fields
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    declare_auto_units_field H::Fields
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    declare_boolean_field H::Fields
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    declare_date_field H::Fields
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    declare_datetime_field H::Fields
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    declare_dms_field H::Fields
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    declare_integer_field H::Fields
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    declare_latitude_field H::Fields
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    declare_longitude_field H::Fields
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    declare_numeric_field H::Fields
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    declare_time_field H::Fields
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    declare_units_field H::Fields
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    denormalize_units H::Units
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    dms_from H
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    dms_to H
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    from H
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    #latitude_h H::ActiveRecordExtensions
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    #longitude_h H::ActiveRecordExtensions
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    normalize_units H::Units
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    time_to H
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    to H
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    #units_h H::ActiveRecordExtensions
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    valid? H::Units