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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 Copyright 2022 The Cirq Developers
Step1:  Hello Qubit
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    <a target="_blank" href="https
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Python Code:
#@title 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
#
# https://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.
Explanation: Copyright 2022 The Cirq Developers
End of explanation
try:
    import cirq
except ImportError:
    print("installing cirq...")
    !pip install --quiet cirq
    import cirq
    print("installed cirq.")
# Pick a qubit.
qubit = cirq.GridQubit(0, 0)
# Create a circuit
circuit = cirq.Circuit(
    cirq.X(qubit)**0.5,  # Square root of NOT.
    cirq.measure(qubit, key='m')  # Measurement.
)
print("Circuit:")
print(circuit)
# Simulate the circuit several times.
simulator = cirq.Simulator()
result = simulator.run(circuit, repetitions=20)
print("Results:")
print(result)
Explanation: Hello Qubit
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    <a target="_blank" href="https://quantumai.google/cirq/start"><img src="https://quantumai.google/site-assets/images/buttons/quantumai_logo_1x.png" />View on QuantumAI</a>
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    <a target="_blank" href="https://colab.research.google.com/github/quantumlib/Cirq/blob/master/docs/start.ipynb"><img src="https://quantumai.google/site-assets/images/buttons/colab_logo_1x.png" />Run in Google Colab</a>
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    <a target="_blank" href="https://github.com/quantumlib/Cirq/blob/master/docs/start.ipynb"><img src="https://quantumai.google/site-assets/images/buttons/github_logo_1x.png" />View source on GitHub</a>
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    <a href="https://storage.googleapis.com/tensorflow_docs/Cirq/docs/start.ipynb"><img src="https://quantumai.google/site-assets/images/buttons/download_icon_1x.png" />Download notebook</a>
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End of explanation
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