text: import React from 'react';
  import PropTypes from 'prop-types';
  
  export default function GraphStepCircle({ centre, radius, lineProps }) {
      const [cx, cy] = centre;
  
      const coords = { cx, cy, 'r': radius };
  
      return (
          <circle {...coords} {...lineProps} />
      );
  }
  
  GraphStepCircle.propTypes = {
      centre: PropTypes.array.isRequired,
      radius: PropTypes.number.isRequired,
      lineProps: PropTypes.object.isRequired
  };
  
  