text: #  Copyright 2021 Collate
  #  Licensed under the Apache License, Version 2.0 (the "License");
  #  you may not use this file except in compliance with the License.
  #  You may obtain a copy of the License at
  #  http://www.apache.org/licenses/LICENSE-2.0
  #  Unless required by applicable law or agreed to in writing, software
  #  distributed under the License is distributed on an "AS IS" BASIS,
  #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #  See the License for the specific language governing permissions and
  #  limitations under the License.
  
  """
  Count Metric definition
  """
  from sqlalchemy import func
  
  from metadata.orm_profiler.metrics.core import StaticMetric, _label
  
  
  class Count(StaticMetric):
      """
      COUNT Metric
  
      Given a column, return the count. Ignores NULL values
      """
  
      @classmethod
      def name(cls):
          return "valuesCount"
  
      def metric_type(self):
          return int
  
      @_label
      def fn(self):
          return func.count(self.col)
  